fixed mapping-display in CVWidgetMSEditor:-oscEditButs on mapping-change

Signed-off-by: nuss <st9fan@gmail.com>
- CVWidgetKnob, CVWidget2D, CVWidgetMS: calibration-display colors swapped - green means calibration is on, red calibration is off
- CVWidgetMS: calibration-display added to the widget
- CVWidget: CVWidget:-setSpec simplified

Signed-off-by: nuss <st9fan@gmail.com>