chore: add modman bind for getting assets from a zone

src/Common/Game/IW4/CommonAssetIW4.h

@@ -0,0 +1,15 @@
+#pragma once
+
+#include "Game/CommonAsset.h"
+
+namespace IW4
+{
+    class CommonAssetTypeMapper final : public ICommonAssetTypeMapper
+    {
+    public:
+        CommonAssetTypeMapper();
+
+        [[nodiscard]] CommonAssetType GameToCommonAssetType(asset_type_t gameAssetType) const override;
+        [[nodiscard]] std::optional<asset_type_t> CommonToGameAssetType(CommonAssetType commonAssetType) const override;
+    };
+} // namespace IW4