Allows roles to be configured to be mentionable, fixes #424

Revert "Implement configurable command node separators"

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.

Allow commands to use added type readers

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

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

Parameter preconditions and typereader overriding

Resolves #302

per the following API error:
{
  "bitrate": [
    "Int value should be greater than 8000."
  ]
}

this was a big one

Fix case insensitive commands forcing parameters to return lowercase

Nickname changes/role changes are no longer sent over PRESENCE_UPDATE, making it obsolete to check for changes there.

Fixed async method

CheckPermissions was not set to async so await would not work.

Fixed Install -> commands.LoadAssembly