+ minor cleanup
As it turns out, native directory separators are not supported
Fix regression during merges
Fix slider repeats playing sample twice
Add a bindable Enabled flag to NotificationManager
Fix notification overlay layout and scheduled tasks being delayed
Fix beatmap wedge appearing with incorrect info on entering song select
Make taiko use taiko-specific hitsounds
Fix taiko autoplay hitting drumroll ticks with the rims instead of centres
Fix progress notifications not creating their completion notification early enough
Make TestCasePlayer more usable
Also adds support for null channels at InputDrum level.
PositionAt is clamped to [0, 1] where 0 denotes the beginning of the curve and 1 denotes the end of the curve. It has no concept of repeats.
Closes #1295
Rate limit logged errors displayed as notifications