refactor: streamline physcollmap dumping

src/ObjCommon/PhysCollmap/PhysCollmapCommon.cpp

@@ -0,0 +1,11 @@
+#include "PhysCollmapCommon.h"
+
+#include <format>
+
+namespace phys_collmap
+{
+    std::string GetFileNameForAssetName(const std::string& assetName)
+    {
+        return std::format("phys_collmaps/{}.map", assetName);
+    }
+} // namespace phys_collmap

src/ObjCommon/PhysCollmap/PhysCollmapCommon.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#include <string>
+
+namespace phys_collmap
+{
+    std::string GetFileNameForAssetName(const std::string& assetName);
+}