[PATCH 0/1] MR5924: Draft: mfmediaengine: Implement SVR.

[Brendan McGrath (＠redmcg)]

This commit replaces the SampleGrabberSink with a dedicated Video Sink,
referred to as the Simple Video Renderer (SVR).

This brings it more inline with Windows and provides the benefit of
having direct access to the IMFSample, removing the need to copy the
sample data.