feat: Dungeons and Dragons feature set

[dat-adi]

There is a requirement for the bot to be somehow integral to the Dungeons and Dragons campaign. This may be for simply messaging them regarding the start of the game, or providing them the resources to the game, and the character sheet for the campaign and what not.

[dat-adi]

Feature

Have the IDs of specific players be stored, and when the m>campaign command is run, alter the player's nicknames and allocate specific roles to them. The channels have already been set to specific ones.

Potential Improvement

Dynamically creating roles, a category and a channel for the session and resetting roles, archiving the channels would be a good idea.