Update requested changes of obsolete and references to labs.

Added `Interaction` to `IMessage`
Fixed grammar
Fixed bugs relating to interactions.

* Update all dependencies and deal with warning/errors

* Add updated AsyncEnumerable implementation

* Fix broken target

* Cleanup

* Remove obsolete message

* typo

* Update azure pipelines

* Update samples to .NET Core 3.0

* Pull out test change

* Install the .net core 3 SDK on the ubuntu image for the time being

* Target net core 3 for the unit tests because pipelines

This allows the integration tests to be run on unix-based systems.

* Squashed commit of test rewrite changes

fix missing priority speaker flag

rewrite the TestChannelPermissionModify test

add test for GuildPermission modify

separate unit and integration tests, start writing channel and guild permission tests

copy over the color tests

copy over the emote tests

copy the token utils tests

make the mocked entities sealed classes

copy the TypeReaderTests class

properly dispose the CommandService in the TypeReaderTests

start writing tests for EmbedBuilder and related classes

test that properties throw ArgumentException when invalid

add tests for the embed length property

add withFooter tests

finish adding tests to EmbedBuilder

fix bug in value validation of EmbedFieldBuilder

hey, these tests actually found a bug!

add tests for the MentionUtils class

add tests for the Format util class

remove all of the old tests

add analyzer tests (copied from old tests)

add tests for the SnowflakeUtils class

add integration tests

these get around the issue of state persisting between tests by creating and deleting a guild for each set of tests. these shouldn't be run excessively because of the rate limits, but should be fine every now and then

remove unnecessary launchSettings.json

update outdated string

don't create a new guild each time, as that can result in errors

this can happen if a bot creates too many guilds without properly deleting them

add some tests that show that guild can be modified

await async assert

add more measures that created channels are deleted when done

remove "Test" prefix from test method names

I think that this prefix when already displayed under a class with a suffix of "Tests" is redundant

Remove mention of old test project

fix an issue from forgetting to await Assert.ThrowsAsync

explicitly disable parallelization on integration tests

add test for GuildPermission modify

separate unit and integration tests, start writing channel and guild permission tests

copy over the color tests

copy over the emote tests

make the mocked entities sealed classes

properly dispose the CommandService in the TypeReaderTests

fix bug in value validation of EmbedFieldBuilder

hey, these tests actually found a bug!

add tests for the MentionUtils class

add tests for the Format util class

remove all of the old tests

add analyzer tests (copied from old tests)

add tests for the SnowflakeUtils class

add integration tests

these get around the issue of state persisting between tests by creating and deleting a guild for each set of tests. these shouldn't be run excessively because of the rate limits, but should be fine every now and then

remove unnecessary launchSettings.json

update outdated string

don't create a new guild each time, as that can result in errors

this can happen if a bot creates too many guilds without properly deleting them

add more measures that created channels are deleted when done

remove "Test" prefix from test method names

I think that this prefix when already displayed under a class with a suffix of "Tests" is redundant

Remove mention of old test project

fix an issue from forgetting to await Assert.ThrowsAsync

explicitly disable parallelization on integration tests

update the azure CI build script

separate execution of test projects so that if one fails the other will not pass

one of the unit tests failed, but the analzyer tests passed

fix test that would break in different timezones

enable the integration tests (only on dev branch)

* Squashed commit of test rewrite changes

fix missing priority speaker flag

rewrite the TestChannelPermissionModify test

add test for GuildPermission modify

separate unit and integration tests, start writing channel and guild permission tests

copy over the color tests

copy over the emote tests

copy the token utils tests

make the mocked entities sealed classes

copy the TypeReaderTests class

properly dispose the CommandService in the TypeReaderTests

start writing tests for EmbedBuilder and related classes

test that properties throw ArgumentException when invalid

add tests for the embed length property

add withFooter tests

finish adding tests to EmbedBuilder

fix bug in value validation of EmbedFieldBuilder

hey, these tests actually found a bug!

add tests for the MentionUtils class

add tests for the Format util class

remove all of the old tests

add analyzer tests (copied from old tests)

add tests for the SnowflakeUtils class

add integration tests

these get around the issue of state persisting between tests by creating and deleting a guild for each set of tests. these shouldn't be run excessively because of the rate limits, but should be fine every now and then

remove unnecessary launchSettings.json

update outdated string

don't create a new guild each time, as that can result in errors

this can happen if a bot creates too many guilds without properly deleting them

add some tests that show that guild can be modified

await async assert

add more measures that created channels are deleted when done

remove "Test" prefix from test method names

I think that this prefix when already displayed under a class with a suffix of "Tests" is redundant

Remove mention of old test project

fix an issue from forgetting to await Assert.ThrowsAsync

explicitly disable parallelization on integration tests

add test for GuildPermission modify

separate unit and integration tests, start writing channel and guild permission tests

copy over the color tests

copy over the emote tests

make the mocked entities sealed classes

properly dispose the CommandService in the TypeReaderTests

fix bug in value validation of EmbedFieldBuilder

hey, these tests actually found a bug!

add tests for the MentionUtils class

add tests for the Format util class

remove all of the old tests

add analyzer tests (copied from old tests)

add tests for the SnowflakeUtils class

add integration tests

these get around the issue of state persisting between tests by creating and deleting a guild for each set of tests. these shouldn't be run excessively because of the rate limits, but should be fine every now and then

remove unnecessary launchSettings.json

update outdated string

don't create a new guild each time, as that can result in errors

this can happen if a bot creates too many guilds without properly deleting them

add more measures that created channels are deleted when done

remove "Test" prefix from test method names

I think that this prefix when already displayed under a class with a suffix of "Tests" is redundant

Remove mention of old test project

fix an issue from forgetting to await Assert.ThrowsAsync

explicitly disable parallelization on integration tests

update the azure CI build script

separate execution of test projects so that if one fails the other will not pass

one of the unit tests failed, but the analzyer tests passed

fix test that would break in different timezones

enable the integration tests (only on dev branch)

* Update mocked channels for changed SendFileAsync signature

* comment out the integration tests from the build script

no bot token is provided to this script, and use of integration tests in CI is questionable here

* force rebuild because Azure linux build broke