Remove All Memory leaks

Game/Game.cpp

@@ -5,7 +5,9 @@
 #include <algorithm>
 
 #include "colors.h"
+#include "GroundTileTypeManager.h"
 #include "utils.h"
+#include "GridSystem/WorldTile.h"
 #include "Levels/World/WorldLevel.h"
 
 
@@ -30,6 +32,7 @@ void Game::Cleanup() {
 	
 	//TODO: ask how 2 delete the TextureManager
 	ScreenManager::DestroyInstance();
+	GroundTileTypeManager::DestroyInstance();
 	TextureManager::DestroyInstance();
 }