d3d11videosink: add support rotate-method property
As fa as I understand
swap chain supports rotation:
https://docs.microsoft.com/en-us/windows/win32/api/dxgi1_2/nf-dxgi1_2-idxgiswapchain1-setrotation. Almost all gstreamer sink elements support
rotate-method, but there is not support
rotate-method inside d3d11videosink. Maybe this only applies to the graphical user interface and does not make sense in relation to gstreamer. This is feature request issue.