Unify space of input state in input callbacks of drawables to parent space.
Unify space of input state in input callbacks of drawables to parent space.

Previously, some events did not convert to parent space (and remained in screen space)
while others did. Single-line methods have been shortened with the => notation and
state input variables have been renamed to signify when they're in screen space rather
than some local space.

default0/osu-framework,ZLima12/osu-framework,paparony03/osu-framework,Nabile-Rahmani/osu-framework,Tom94/osu-framework,EVAST9919/osu-framework,ZLima12/osu-framework,EVAST9919/osu-framework,RedNesto/osu-framework,ppy/osu-framework,peppy/osu-framework,EVAST9919/osu-framework,peppy/osu-framework,paparony03/osu-framework,naoey/osu-framework,DrabWeb/osu-framework,ppy/osu-framework,EVAST9919/osu-framework,Nabile-Rahmani/osu-framework,smoogipooo/osu-framework,DrabWeb/osu-framework,ppy/osu-framework,DrabWeb/osu-framework,peppy/osu-framework,default0/osu-framework,RedNesto/osu-framework,naoey/osu-framework,Tom94/osu-framework,smoogipooo/osu-framework