Doesn't interact well with dialog popups. May add back later with complementing logic.
# Conflicts: # osu-framework # osu.Game/Beatmaps/Drawables/BeatmapGroup.cs
They can now only be instantiated from BeatmapDatabase and are abstract (to avoid misuse).
- Applies to Slider Ticks and start circle. repeat/endpoints still need addressing. - Removed SliderTicksLayer abstraction for now.