Some improvements

-Changed the way different inputs interact; rather than take the greatest magnitude their sum is used instead, simplifying the code and allowing for interesting combination of control schemes
-Remade most of the menu UI to be more consistent
-When exiting a track you are now presented with the track list
-I'm aware of a bug that makes the medium track list not select-able with controller before going in a race and coming back, oddly specific, sorry about that
-Removed medal requirement for track, it was just an anti-fun mechanic that's not going to be in the full game anyway, sorry that it was there in the first place