Game.cpp and World.cpp Cleanup (#159)

* Remove CProperties and delete dup Properties from World.h

* Improvement

* Fix compile

* Cleanup

* Document gRaceState

* wip cleanup

* compile

* Impl PlayerBombKart

* Rename CourseManager_ to CM_

* Finish renames m_ to CM_

* cleanup

* Remove extra printf

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Co-authored-by: MegaMech <7255464+MegaMech@users.noreply.github.com>

src/engine/objects/Object.cpp

@@ -16,7 +16,6 @@ OObject::OObject() {}
 void OObject::Tick() { }
 void OObject::Tick60fps() {}
 void OObject::Draw(s32 cameraId) { }
-void OObject::Collision() {}
 void OObject::Expire() { }
 void OObject::Destroy() {
     PendingDestroy = true;