Configurable Role Control based on Set Criteria

[kringeth000]

Add functionality to the backend to allow handling events when certain criteria is met in a database query, potentially in conjunction with other events.

For example, having a "regular" role applied or removed in a server for meeting or failing to meet a certain threshold of activity, defined by the instance administrator (x number of hours, x number of messages, etc. over a certain period of time).

This could potentially be configured via a bot command, or ideally from the web frontend.

Other/Future considerations:

• Logic regarding whether these roles were added by the bot automatically, or by a user (discard manual changes, or accept them?)
• Triggerable events from this -- DM to user, message in channel, etc.
• What would the command format look like?