Integrate qt-multi-screen-compositor/dynamic_screen_rotation

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Commit: seco-ne/tools/qt-multi-screen-compositor@54657d3a

Rotation: Read rotation at startup

Added a flag -r/--rotate= to set a rotation at startup. If no rotation
is specified by flag, the value in /sys/class/graphics/fbcon/rotate will
be evaluated. The rotation value is passed as a QML property and applied
to all screens. 90 and 270 Degree rotation does not work correctly at
the moment.

BCS 746-000787