Show osu!taiko centre/rim colouring in editor timeline
Add remaining metadata fields to editor setup screen
Closes #13443.
Closes https://github.com/ppy/osu/issues/12630.
EditorBeatmap.Update
PerformOnSelection
GetSkin()
TernaryStateMenuItem
OsuSelectionHandler
Add a HitObjectUsageEventBuffer to handle HOC events appropriately
TransferBlueprintFor
Rename hitobject blueprints and tie them to HitObjects
Co-authored-by: Bartłomiej Dach <dach.bartlomiej@gmail.com>
Encapsulate check arguments in context object
Add skin editor saving / loading support