Feature: Allow force starting games

[ellieisjelly]

Allows /game start to force start a game with a WaitingLobby even when it does not meet the minimum player requirements

[Hugman76]

This check prevents games from starting with a number of players that may result in an instant game close. Many games do not support below 2 players per-say, and a lot of them will declare the last player alive winner. That seems unnecessary

[Patbox]

Maybe if it required an extra argument (force literal) it might make sense (since it would mostly be for debug only and not production thing)