Use the same CIImage based video frames as with
QGraphicsVideoItem, but since CIImages can't be
rendered directly in Scene Graph,
the frame is rendered to FBO first.
Task-number: QT-5423
Change-Id: I16f7e6351578bae21f8642a8028538c441e1f544
Reviewed-by: Lev Zelenskiy <lev.zelenskiy@nokia.com>
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
f9516c4c5b