Implement and test `GameBeatmapUsageCheck` and `MatchBeatmapCheck`

[hburn7]

Closes #479 Closes #449

Adds functionality for GameBeatmapUsageCheck and MatchBeatmapCheck automation workflows.

Game:

• If a beatmap is played in a game but is not pooled (and the tournament has a PooledBeatmaps collection), reject the game with BeatmapNotPooled.
• If a beatmap is played in a game and is in the tournament's PooledBeatmaps collection, it will not be rejected.
• If a beatmap is used once throughout the entire tournament and the tournament does not have a known PooledBeatmaps collection, apply GameWarningFlags.BeatmapUsedOnce.

Match:

• If a match's games collection features games beyond the first 2 in the collection with a GameRejectionReason of BeatmapNotPooled, apply MatchWarningFlags.UnexpectedBeatmapsFound.

[myssto]

cq and tests failing? LOL

[hburn7]

cq and tests failing? LOL

It fails to build because it considers warnings as errors in CI

[hburn7]

actually no, there's just an error lol

[hburn7]

Update here when functional testing is done

[hburn7]

Seems to be working fine after functional testing.