Add some missing changes

Source/Engine/Graphics/GPUBuffer.cpp

@@ -244,6 +244,7 @@ bool GPUBuffer::DownloadData(BytesContainer& result)
     // Ensure not running on main thread
     if (IsInMainThread())
     {
+        // TODO: support mesh data download from GPU on a main thread during rendering
         LOG(Warning, "Cannot download GPU buffer data on a main thread. Use staging readback buffer or invoke this function from another thread.");
         return true;
     }