Icatcher

First major upgrade to iCatcher+ from Quest

- Face detector default is now RetinaFace, see command line options for full customization. The older opencv_dnn is still available.
- Fixes bug with passing crop_mode "right" not working correctly
- Better logging
- Better testing

This will be the last release before Quest upgrades to core.

- Fixes a bug where if user specifies negative illegal transitions becoming positive, then program crashes 34
- Minor upgrade to "lowest face selector", where now the ratio of the bounding box is also being considered. This was found to improve detection in some edge cases where parents are in the frame, and shouldn't change prior behavior for any case where only an infant is present 40.
- Minor upgrade to probing for VFR using ffmpeg, where wrongly structured videos can still be probed by positive look-ahead instead of crashing 35

First automated release.