Mania hitobject object conversion
Abstract out SectionsContainer from Settings
Add basic framework required to implement mania note input
Thanks to the order of adding to parent container, the depth value is actually not needed.
Fixes to the song select screen
Mania endtime object conversion
Mania distance object conversion
More tidy ups
Remove Note Siblings.
Do not pause a running replay if the window is not focused
Mania pattern changes
Move spinner colours to local definition for now