message: Fix Attachment FrameRefType
  Attachments might be read and/or written. Pessimistically assume attachments are
  read and then overwritten. Further analysis should be able to refine this access
  type in some cases.
diff: @@ -1246,7 +1246,7 @@ void WrappedVulkan::vkCmdBeginRenderPass(VkCommandBuffer commandBuffer,
  if(att == NULL)
  break;
  - record->MarkResourceFrameReferenced(att->baseResource, eFrameRef_PartialWrite);
  + record->MarkResourceFrameReferenced(att->baseResource, eFrameRef_ReadBeforeWrite);
  if(att->baseResourceMem != ResourceId())
  record->MarkResourceFrameReferenced(att->baseResourceMem, eFrameRef_Read);
  if(att->resInfo)
  @@ -1591,7 +1591,7 @@ void WrappedVulkan::vkCmdBeginRenderPass2KHR(VkCommandBuffer commandBuffer,
  if(att == NULL)
  break;
  - record->MarkResourceFrameReferenced(att->baseResource, eFrameRef_PartialWrite);
  + record->MarkResourceFrameReferenced(att->baseResource, eFrameRef_ReadBeforeWrite);
  if(att->baseResourceMem != ResourceId())
  record->MarkResourceFrameReferenced(att->baseResourceMem, eFrameRef_Read);
  if(att->resInfo)
  