* [d3d11] add some resource validation for CopyResource and CopyResourceSubregion
combine if statement
* [d3d11] added copy extents validation for compressed formats
* correct return values
* fix incorrect logic operators
* set valid copy extents when possible
* [d3d11] Clamp copy region in CopySubresourceRegion
* [dxvk] Add helper methods to deal with block-compressed images
* [d3d11] Clean up validation in CopySubresourceRegion
* [d3d11] Improve error reporting and validation in CopyResource
* [d3d11] Fix inconsistent error messages