refactor(all): Rename main classes to RWTHVR...
requested to merge vr-vis/VR-Group/unreal-development/david.gilbert/rwth-vr-toolkit:dev/5.3 into dev/5.3
- refactor(pawn, movement)!: Renames pawn and movement to ARWTHVRPawn and UCollisionHandlingMovement. Add redirectors for now.