Method for cube marker recognition

[zayfod]

A method for detecting and recognizing Cozmo (and Vector?) cube markers is needed.

Cozmo uses custom feducial markers to allow detection, recognition, and pose estimation of observable objects, as described here: http://cozmosdk.anki.com/docs/generated/cozmo.objects.html

Ideally all Cozmo custom object markers should be supported: http://cozmosdk.anki.com/docs/generated/cozmo.objects.html#cozmo.objects.CustomObjectMarkers