Added Macro to disable Stereo and upgraded to OpenCV4.

include/animation.h

include/backgroundFilter.h

include/blurFilter.h

include/borderFilter.h

include/brightContrastFilter.h

include/brightFilter.h

include/calibFilter.h

include/codeMarkerItem.h

include/contrastFilter.h

include/ellipse.h

include/extrCalibration.h

include/filter.h

include/gridItem.h

include/helper.h

include/markerCasern.h

include/petrack.h

include/player.h

include/stereoAviFile.h

include/stereoContext.h

include/stereoItem.h