* feature: add DiscordSocketRestClient

this resolves #803.

Users can access a DiscordSocketRestClient from the new
`DiscordSocketClient.Rest` property.

DiscordSocketRestClient is a wrapper over DiscordRestClient with certain
state-modifying methods, such as Login/Logout disabled, to prevent users
from breaking the client state.

DiscordSocketRestClient uses the same API client as the
DiscordSocketClient, allowing for shared ratelimiting - meaning users
can now force HTTP requests without needing to wory about running into
429s.

* fix: disallow users from bypassing shadowed login

* Initial set of dispose implementations

Not handled yet:
- Discord.Net.Websocket/Entities/SocketGuild
- Discord.Net.Tests

* Refactor DiscordSocketClient init into ctor

This way we remove an IDisposableAnalyzer warning for not disposing
the client when we set the client variable.

* Dispose of clients when disposing sharded client

* Finish implementing IDisposable where appropriate

I opted to use NoWarn in the Tests project as it wasn't really necessary
considering that our tests only run once

* Tweak samples after feedback

* Add XML docs

* Clean up style switcher

* Squash commits on branch docs/faq-n-patches

* Fix broken theme selector

* Add local image embed instruction

* Add a bunch of XML docs

* Add a bunch of XML docs

* Fix broken search
+ DocFX by default ships with an older version of jQuery, switching to a newer version confuses parts of the DocFX Javascript.

* Minor fixes for CONTRIBUTING.md and README.md

* Clean up filterConfig.yml

+ New config exposes Discord.Net namespace since it has several common public exceptions that may be helpful to users

* Add XML docs

* Read token from Environment Variable instead of hardcode

* Add XMLDocs

* Compress some assets & add OAuth2 URL generator

* Fix sample link & add missing pictures

* Add tag examples

* Fix embed docs consistency

* Add details regarding userbot support

* Add XML Docs

* Add XML Docs

* Add XML Docs

* Minor fixes in documentations
+ Fix unescaped '<'
+ Fix typo

* Fix seealso for preconditions and add missing descriptions

* Add missing exceptions

* Document exposed TypeReaders

* Fix letter-casing for files

* Add 'last modified' plugin

Source: https://github.com/Still34/DocFx.Plugin.LastModified
Licensed under MIT License

* XML Docs

* Fix minor consistencies & redundant impl

* Add properties examples to overwrite

* Fix missing Username prop

* Add warning for bulk-delete endpoint

* Replace note block

* Add BaseSocketClient docs

* Add XML docs

* Replace langword null to code block null instead

- Because DocFX sucks at rendering langword

* Replace all langword placements with code block

* Add more IGuild docs

* Add details to SpotifyGame

* Initial proofread of the articles

* Add explanation for RunMode

* Add event docs

- MessageReceived
- ChannelUpdated/Destroyed/Created

* Fix light theme link color

* Fix xml docs error

* Add partial documentation for audit log impl

* Add documentation for some REST-based objects

* Add partial documentation for audit log objects

* Add more XML comments to quotation mark alias map stuff, including an example

* Add reference to CommandServiceConfig from the util docs'

* Add explanation that if " is removed then it wont work

* Fix missing service provider in example

* Add documentation for new INestedChannel

* Add documentation

* Add documentation for new API version & few events

* Revise guide paragraphs/samples

+ Fix various formatting.
+ Provide a more detailed walkthrough for dependency injection.
+ Add C# note at intro.

* Fix typos & formatting

* Improve group module example

* Small amount to see if I'm doing it right

* Remove/cleanup redundant variables

* Fix EnterTypingState impl for doc inheritance

* Fix Test to resolve changes made in 15b58e

* Improve precondition documentation

+ Add precondition usage sample
+ Add precondition group usage sample
+ Move precondition samples to its own sample folder

* Move samples to individual folders

* Clarify token source

* Cleanup styling of README.md for docs

* Replace InvalidPathChars for NS1.3

* InvalidPathChars does not exist in NS1.3; replaced with GetInvalidPathChars instead.

* Add a missing change for 2c7cc738

* Update LastModified to v1.1.0 & add license

* Rewrite installation page for Core 2.1

* Fix anchor link

* Bump post-processor to v1.1.1

* Add fixes to partial file & add license

* Moved theme-switcher code to scripts partial file
+ Add author's MIT license to featherlight javascript

* Remove unused bootstrap plugin

* Bump LastModified plugin

* Changed the path from 'lastmodified' to 'last-modified' for consistency

* Cleanup README & Contribution guide

* Changes to last pr

* Fix GetCategoryAsync docs

* Proofread and cleanup articles

* Change passive voice in "Get Started" to active
* Fix improper preposition in Commands Introduction page
* Fix minor grammar mistakes in "Your First Bot" (future tense -> present tense/subjunctive mood -> indicative mood/proper noun casing/incorrect noun/add missing article)
* Fix minor grammar mistakes in "Installation" (missing article)

* no hablo ingles

* Try try try again

* I'm sure you're having as much fun as I am

* Cleanup TOC & fix titles

* Improve styling

+ Change title font to Noto Sans
+ Add materialized design for commit message box

* Add DescriptionGenerator plugin

* Add nightly section for clarification

* Fix typos in Nightlies & Post-execution

* Bump DescriptionGenerator to v1.1.0

+ This build adds the functionality of generating managed references' summary into the description tag.

* Initial emoji article draft

* Add 'additional information' section for emoji article

* Add cosmetic changes to the master css

* Alter info box color
+ Add transition to article content

* Add clarification in the emoji article

* Emphasize that normal emoji string will not translate to its Unicode representation.
* Clean up or add some of the samples featured in the article.
+ Add emoji/emote declaration section for clarification.
+ Add WebSocket emote sample.
- Remove inconsistent styling ('wacky memes' proves to be too out of place).

* Improve readability for nightlies article

* Move 'Bundled Preconditions' section

* Bump LastModified to fix UTC DateTime parsing

* Add langwordMapping.yml

* Add XML docs

* Add VSC workspace rule

* The root workspace limits the ruler to 120 characters for member documentations and excludes folders such as 'samples' and 'docs'.
* The docs workspace limits the ruler to 70 characters for standard conceptual article to comply with documentation's CONTRIBUTING.md rule, and excludes temprorary folders created by DocFX.

* Update CONTRIBUTING.md

* Add documentation style rule

* Fix styling of several member documentation

* Fix ' />' caused by Agent Smith oddities
* Fix styling to be more specific about the mention of IDs

* Fix exception summary to comply with official Microsoft Docs style

* References
https://docs.microsoft.com/en-us/dotnet/api/system.argumentnullexception?view=netframework-4.7.2
https://docs.microsoft.com/en-us/dotnet/api/system.platformnotsupportedexception?view=netframework-4.7.2
https://docs.microsoft.com/en-us/dotnet/api/system.badimageformatexception?view=netframework-4.7.2

* Add XML documentations

* Shift color return docs

* Fix minor docs

* Added documentation for SocketDMChannel, SocketGuildChannel, and SocketTextChannel

* Add XML docs

* Corrections to SocketGuildChannel

* Corrections to SocketTextChannel

* Corrections to SocketDMChannel

* Swapped out 'id' for 'snowflake identifier

* Swapped out 'id' for 'snowflake identifier'

* SocketDMChannel amendments

* SocketGuildChannel amendments

* SocketTextChannel amendments

* Add XML docs & patch return types
+ Starting from this commit, all return types for tasks will use style similar to most documentations featured on docs.microsoft.com

References:
https://docs.microsoft.com/en-us/dotnet/api/microsoft.entityframeworkcore.dbcontext.-ctor?view=efcore-2.1
https://docs.microsoft.com/en-us/dotnet/api/system.io.filestream.readasync?view=netcore-2.1
https://docs.microsoft.com/en-us/dotnet/api/system.io.textwriter.writelineasync?view=netcore-2.1#System_IO_TextWriter_WriteLineAsync_System_Char___
And many more other asynchronous method documentations featured in the latest BCL.

* Added documentation for many audit log data types, fixed vowel indefinite articles

* Change audit log data types to start with 'Contains' (verb) instead of an article

* Fix some documentation issues and document some more audit log data types

* Fix English posession

* Add XML doc

* Documented two more types

* Documented RoleCreateAuditLogData

* Document remaining audit log data types

* Added RestDMChannel documentation

* Added RestGuildChannel documentation

* Added RestTextChannel documentation

* Added RestVoiceChannel documentation

* Added RestUser documentation

* Added RestRole documentation

* Added RestMessage documentation

* Slightly better wording

* Contains -> Contains a piece of (describe article)

* [EN] Present perf. -> past perf.

* Add XML docs

* Fix arrow alignment

* Clarify supported nullable type

* Fixed a typo in ISnowflakeEntity

* Added RestUser Documentation

* Added RestInvite documentation

* Add XML docs & minor optimizations

* Minor optimization for doc rendering

* Rollback font optimization changes

* Amendments to RestUser

* Added SocketDMChannel documentation

* Added RestDMChannel documentation

* Added RestGuild documentation

* Adjustment to SocketDMChannel

* Added minimal descriptions from the API documentation for Integration types

* Added obsolete mention to the ReadMessages flag.

* Added remarks about 2FA requirement for guild permissions

* Added xmldoc for GuildPermission methods

* Added xml doc for ToAllowList and ToDenyList

* Added specification of how the bits of the color raw value are packed

* Added discord API documentation to IConnection interface

* I can spell :^)

* Fix whitespace in ChannelPermission

* fix spacing of values in guildpermission

* Made changes to get field descriptions from feedback, added returns tag to IConnection

* Added property get standard for IntegrationAccount

* Added property get pattern to xml docs and identical returns tag.

* Change all color class references to struct
...because it isn't a class.

* Add XML docs

* Rewrote the returns tags in IGuildIntegration, removed the ones I was unsure about.

* Rewrote the rest of the returns tags

* Amendments

* Cleanup doc for c1d78189

* Added types to <returns> tags where missing

* Added second sample for adding reactions

* Added some class summaries

* Missed a period

* Amendments

* restored the removed line break

* Removed unnecessary see tag

* Use consistent quotation marks around subscribers, the name for these users are dependant on the source of where they are integrated from (youtube or twitch), so we should not use a name that is specific to one platform

* Add <remarks> tag to the IGuildIntegration xmldocs

* Fix grammar issue

* Update DescriptionGenerator

* Cleanup of https://github.com/Still34/Discord.Net/pull/8

* Cleanup previous PR

* Fix for misleading behaviour in the emoji guide
+ Original lines stated that sending a emoji wrapped in colon will not be parsed, but that was incorrect; replaced with reactions instead of sending messages as the example

* Add strings for dictionary in DotSettings

* Add XML docs

* Fix lots of typos in comments
+ Geez, I didn't know there were so many.

* Add XML docs & rewrite GetMessagesAsync docs

This commit rewrites the remarks section of GetMessagesAsync, as well as adding examples to several methods.

* Update 'Your First Bot'
+ This commit reflects the new changes made to the Discord Application Developer Portal after its major update

* Initial optimization for DocFX render & add missing files

* Add examples in message methods

* Cleanup https://github.com/RogueException/Discord.Net/pull/1128

* Fix first bot note

* Cleanup FAQ structure

* Add XML docs

* Update docfx plugins

* Fix navbar collapsing issue

* Fix broken xref

* Cleanup FAQ section
+ Add introductory paragraphs to each FAQ section.
+ Add 'missing dependency' entry to commands FAQ.
* Split commands FAQ to 'General' and 'DI' sections.

* Cleanup https://github.com/RogueException/Discord.Net/pull/1139

* Fix missing namespace

* Add missing highlighting css for the light theme

* Add additional clarification for installing packages

* Add indentation to example for clarity

* Cleanup several articles to be more human-friendly and easier to read

* Remove RPC-related notes

* Cleanup slow-mode-related documentation strings

* Add an additional note about cross-guild emote usage

* Add CreateTextChannel sample

* Add XMLDocs

* Change all Select(... as ...) to OfType

* Add changes according to 194a8aa427

* Add input validation for bot tokens based on their length

* Add token validation to BaseDiscordClient#LoginAsync

Adds a TokenUtils class which is used to validate that tokens are correct

* Revert changes to DiscordRestApiClient

* Add Unit tests to the TokenUtils class, fix a logic error that was caught by those tests

* Allow for API to throw exceptions

Moves the validation of tokens to be inside of LoginInternalAsync, and writes a Warning to the console when the supplied tokens are invalid

* Initial support for invite member count arg

* Fix IDiscordClient#GetInviteAsync behavior

- Previously, the GetInviteAsync method would return null since it couldn't be parsed as a simple RestInvite object. The object should be a RestInviteMetadata instead.

* Fix methods that didn't comply with the interface

* Change with_counts REST behaviour

* Remove unnecessary JSON prop

* Remove AcceptAsync

* Move REST requests to appropiate class

* Add call to ClientHelper and expose to public API

* Expose shard count request in public api

* Expose method from interface

* Update sharded client to utilize the new method

* Method is already implemented in a base class

* Refactor name to fit pattern for methods returning a `Task`

* Adds missing ConfigureAwait

* Corrects unnecessary whitespace

* Removes unneeded whitespace

* Add Webhook API models, REST implementation, and Socket bridges.

* Remove token overrides from REST.

Leaving that as a Webhook package only feature.

* Add Webhook API models, REST implementation, and Socket bridges.

* Remove token overrides from REST.

Leaving that as a Webhook package only feature.

* Webhook core implementation.

* Webhook REST implementation.

* Webhook client implementation.

* Add channel bucket id.

* Add BaseDiscordClient. Add various missing RequestOptions args.

DiscordSocketClient and DiscordShardedClient's shared members now exist in this abstract class.

* Add ShardReady event.

* Style consistency. Remove extraneous overloads.

Remove extraneous overloads.

* Add BaseSocketClient#DownloadUsersAsync().

Style cleanups.

* Add ShardLatencyUpdated event.

Style cleanup.

* Hook LatencyUpdated for ShardedClient.

* Begone whitespace.

* I'm good at this, I swear. >_>

* Add back DiscordShardedClient.UserPresenceUpdated

* Add ObsoleteAttribute

* Removing the UserPresenceUpdated event.