chore: refactor IW4 asset loaders

src/ObjLoading/Game/IW4/Leaderboard/LoaderLeaderboardIW4.h

@@ -0,0 +1,13 @@
+#pragma once
+
+#include "Asset/IAssetCreator.h"
+#include "Game/IW4/IW4.h"
+#include "SearchPath/ISearchPath.h"
+#include "Utils/MemoryManager.h"
+
+#include <memory>
+
+namespace IW4
+{
+    std::unique_ptr<AssetCreator<AssetLeaderboard>> CreateLeaderboardLoader(MemoryManager& memory, ISearchPath& searchPath);
+} // namespace IW4