Update names of various objects and method to be shorter, for instance GstD3D12CommandAllocator is changed to GstD3D12CmdAlloc. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7642>
Adding GstD3D12Frame struct with map, unmap, and copy methods. This new struct is equivalent to GstVideoFrame but gst_d3d12_frame_map() method will extract D3D12 specific resource handles from memory. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6620>
Move buffer pool, converter, and device abstraction layer to public library Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/6494>