Fix sync errors, add video support using cv2 and numpy

* Move files to the ARDrone2 directory
* Add video processing using CV2 and Numpy
* Fix sync problems in various files

I have not tested the move commands, may be next weekend. You can:
+ Get and see video
+ Take Off
+ Land
+ Calibrate
+ Flat Trim
+ Get Config
+ Get drone state
+ Emergency
+ Emergency reset
+ LEDs anim