Complete registration rewrite and add new registration modes

[Ooglely]

Rewriting the entire registration and update system in order to reduce the number of loop crashes in the future, and to add new registration modes such as allowing roles for both modes or the highest of the two modes.

Features

• Add BotMenu class to replace old classes for each different menu
• Add Combined and Both to /registration setup
• Support new reg role storage in the database
• Support Both and Combined modes in update_roles loop
• Improve error handling throughout update_roles
• Add new command for removing all bypass roles
• Replace all other menus that relied on old registration menu classes
• Improve /updateall
• Add command to run update for all db players (owner only)
• Add command to unregister player (owner only)
• Rewrite webserver to use new RegistrationSettings class

Tests

• /registration with all modes
• All menus that have to be replaced as part of menu rewrite
• /updateall with each mode in pugBot server
• Test /registration with old registration setups in db
• Test registration through website