Converted Descriptor heap to memory arena. Used Gemini with antigravity.

Heap pool code is a mess right now (lot of useless comments)
Will revisit later.

Game/game.cpp

@@ -40,11 +40,11 @@ extern "C" JULIET_API void GameInit(GameInitParams* /*params*/)
         int   Score;
     };
 
-    auto* gameState = ArenaPushType<GameState>(GetGameArena());
+    auto* gameState      = ArenaPushType<GameState>(GetGameArena());
     gameState->TotalTime = 0.0f;
     gameState->Score     = 0;
-    
-    printf("Game Arena Allocated: %p\n", gameState);
+
+    printf("Game Arena Allocated: %p\n", static_cast<void*>(gameState));
 
     using namespace Game;