Scripts for auto-generating robot packages

Initial PR for robot package generation scripts.  See package README for a quick tutorial.  Remaining items (not included in this PR) 
 * Python documentation
 * Wiki tutorials
As there is no (direct) dependency on any ROS stuff in your package (it 'just' generates text and creates directories), it might be an idea to create just a regular python package, without any catkin or ROS dependencies (similar to how [Bloom](https://github.com/ros-infrastructure/bloom) does it, fi).

Perhaps something for v2, but this would allow running this on Windows for instance, without any need for a ROS install.