[bebop] Added the new Parrot Bebop
[parrot] move and merge ardrone2 and bebop scripts

- common utility functions but still a lot of differences
- some features like network configuration not yet supported on bebop
- upload tested with bebop, more checks needed for ardrone2
[transport] pass the periph and not the parent structure...
[mavlink] Basic implementation (needs cleanup)
[mavlink] configurable device