Fixes #487

Fixes #462

Issues/427 + AliasAttribute targets classes

Implement configurable command node separators

Instead of using fields, we will now use properties (that must have a setter).

This allows users to flag a field with InjectAttribute, and when the module is created at runtime, this field will be filled in with the object from the dependency map.

A.K.A. "FiniteReality is a twat"

This fixes #304 over foxbot's PR for the same issue.

Parameter preconditions and typereader overriding

Fix case insensitive commands forcing parameters to return lowercase

This commit also adds a TypeReaders property to CommandService, so
it is possible to see all of the registered TypeReaders. This makes
it possible for users to implement their own parsing instead of
using the built-in parsing.

Seems I missed this originally, whoops.

The previous name was causing some confusion