Regressed with recent DrawableHitObject changes (moving of RelativeSizeAxes specifications out of constructors).
Co-authored-by: Bartłomiej Dach <dach.bartlomiej@gmail.com>
Should be recognized as a normal protected method in its declaring class.
Also makes `CreatePlayerRuleset()` and `CreateRulesetForSkinProvider()` not-null to avoid unwanted behaviour with their derivers
SkinnableTestScene
CreateRuleset