message: D3D12: make texture transition barrier on all subresources
  This doesn't fix anything in particular and is just a drive-by
  change.
diff: @@ -126,7 +126,7 @@ namespace d3d12 {
  barrier->Transition.pResource = resource.Get();
  barrier->Transition.StateBefore = stateBefore;
  barrier->Transition.StateAfter = stateAfter;
  - barrier->Transition.Subresource = 0;
  + barrier->Transition.Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES;
  return true;
  }
  