Add IW4 asset loader classes for all asset types that did not have one yet

src/ObjLoading/Game/IW4/AssetLoaders/AssetLoaderClipMap.cpp

@@ -0,0 +1,27 @@
+#include "AssetLoaderClipMap.h"
+
+#include <cstring>
+
+#include "ObjLoading.h"
+#include "Game/IW4/IW4.h"
+#include "Pool/GlobalAssetPool.h"
+
+using namespace IW4;
+
+void* AssetLoaderClipMap::CreateEmptyAsset(const std::string& assetName, MemoryManager* memory)
+{
+    auto* clipMap = memory->Create<clipMap_t>();
+    memset(clipMap, 0, sizeof(clipMap_t));
+    clipMap->name = memory->Dup(assetName.c_str());
+    return clipMap;
+}
+
+asset_type_t AssetLoaderClipMapSp::GetHandlingAssetType() const
+{
+    return ASSET_TYPE_CLIPMAP_SP;
+}
+
+asset_type_t AssetLoaderClipMapMp::GetHandlingAssetType() const
+{
+    return ASSET_TYPE_CLIPMAP_MP;
+}