Add scoring test scene for mania

[bdach]

• Continuation of preparation for Classic scoring growth is too steep after scorev2 changes #23763
• Depends on Add scoring test scene for catch #24823

Testing resources

mania-scoring-resources.zip contains the following:

• ManiaTest.osu - a single mania beatmap with 100 objects
• .osr files that correspond to replays set on the above beatmap
• .txt files containing extracts of stable total score after each judgement to cross-check.

Six different test cases are provided:

• perfect score:
  • PerfectScoreV1
  • PerfectScoreV2
• score with misses:
  • ScoreV1Misses
  • ScoreV2Misses
• score with misses and OKs:
  • ScoreV1MissesAndOks
  • ScoreV2MissesAndOks

which correspond to the test steps added to the scene. Contrary to the other rulesets, mania has no adjustable multiplier.

Stable code for reference:

• Score V1:
  • https://github.com/peppy/osu-stable-reference/blob/1531237b63392e82c003c712faa028406073aa8f/osu!/GameModes/Play/Rulesets/Ruleset.cs#L1032-L1068
  • and then https://github.com/peppy/osu-stable-reference/blob/1531237b63392e82c003c712faa028406073aa8f/osu!/GameModes/Play/Rulesets/Ruleset.cs#L1108-L1116
• Score V2: https://github.com/peppy/osu-stable-reference/blob/1531237b63392e82c003c712faa028406073aa8f/osu!/GameplayElements/Scoring/Processors/ScoreProcessorMania.cs