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/Actor.cpp

@@ -8,6 +8,7 @@ AActor::AActor() {}
 void AActor::Tick() {  }
 void AActor::Draw(Camera *camera) { }
 void AActor::Collision(Player* player, AActor* actor) {}
+void AActor::VehicleCollision(s32 playerId, Player* player){}
 void AActor::Destroy() {
     // Set uuid to zero.
     memset(uuid, 0, sizeof(uuid));