Tidies up ToolbarModeSelector a lot by using DI.
Taiko fixes
Update score to read statistics from server.
Tooltips
Also brings some naming up-to-date.
# Conflicts: # osu.Game/Graphics/UserInterface/OsuSliderBar.cs
Don't play sliderbar samples more than once when value has not changed.
Handles drag operations better.
Note that this isn't a full "as intended" fix, because the full fix is quite big. I'll be saving it for a separate branch/pull-req.
Update exception name.