feat: Add lobbies to matchmaker + separate matches by game id

[RockasMockas]

Don't have time to fully end-to-end implement/test right now, so sharing basic first run through of adding lobbies + requiring supplying a game_id for matchmaking as well. Implemented the core flows based on the old code +/- with some abstracting.

Includes optional password protection for lobbies w/blake3. Lacks wrapper methods in bones_framework to make it easy to test/work with yet.

[MaxCWhitehead]

This looks great, thank you!

[MaxCWhitehead]

forgot to merge - I have not yet setup PR for jumpy to switch over but will do that soon after the fact, I've blocked this PR long enough heh. Thanks!