[Feature] Switch active minigame

[Bims-sh]

Build a system for managing the currently active minigame:

• It should enable/disable the correct events for a specific minigame
  • We could create a list of events for a specific minigame here and enable all the ones in the list via Server.AddEvent()/Server.RemoveEvent().
  • Make a Server.DisableAllEvents() function to "unload" every single event.
• Since we have some events that are used globally, using a list with the corresponding events for that minigame would be useful.