Shared messages sent between ground station, interop, imaging, and autopilot

• Clone repo in ros workspace and run catkin_make.
• In your python file, type from uav_msgs.msg import <message type>.
• Use as you would a built-in message type.

• Add messages under msg folder.
• Add services under srv folder.
• Add the service or message name to the appropriate place in CMakeLists.txt