Create new device for Parrot mini drones

[PeterBowman]

I've managed to command the Parrot's Jumping Sumo drone via our robot command interface, that is, I created another device that implements IRobotManager for such purpose. The code is hosted on a separate branch, just one commit so far: 455de61. I did not succeed to receive frames from the onboard camera, and this device could be further expanded to connect to more Parrot products, e.g. flying drones. Other than that, it works and has been tested on the real drone and a RD client instance, which means that we were able to command the robot via keystroke events.

• https://developer.parrot.com/docs/reference/all/index.html
• https://developer.parrot.com/docs/SDK3
• sample code from open-source Parrot developers
• some points on YARP, ports and webcams: Reading from an IP camera (mjpeg http stream)  robotology/yarp#254