[WIP] Updating James to work with slash commands

[warp-core]

To do:

• Finish this to do list

• Test everything

• Ensure coding style uniformity

• Lookup, Show and Showimage currently do not work as slash commands, I'm not sure what the issue is.

• Update to slash commands:

  • AudioPlayerSendHandler, Playlists and TrackScheduler should be compatible with both Commands and SlashCommands as they are now.
  • Audio should support both Commands and SlashCommands and I don't think it needs changing until we want to remove normal commands now.
  • I think the audio commands are done.
  • I think Util is done.
  • Creatortools commands need to be done:
    • CRConvert
    • SwizzleImage
    • Template
  • Info commands need to be done:
    • Help (this one is probably less useful with slash commands)
    • Info
    • Ping
  • Misc commands:
    • Birb
    • Cat
    • Dog
    • Translate
  • Moderation commands
    • Activity
    • Move
    • OptIn
    • OptOut
    • Purge
    • Timeout
  • Eval
  • Finish updating James.java
  • Add anything new needed to JamesSlashCommand.java
  • Add new moderation functionality:
    • Allow move/purge commands to take a message id as argument, instead of number of messages #153 slash commands should make this almost trivial

• Fix bugs:

  • random.birb.pw API changed #161 (not super important but since so much is changing anyway)

[warp-core]

Timeout works differently as a slash command than the normal command. It can no longer handle multiple users at a time but the time can be given in units of seconds, minutes, hours, days, or weeks and a reason can be given (though I didn't have it do anything with that reason yet).
This is effectively how Brig Bot does it (though, with slightly less logging at the moment) which is the bot of choice for timeouts in ESC at the moment, so that seems fine.