SatNOGS rotator ROS controller

[azisi]

Hey!! I try to develop a ROS package that communicates and tune (e.g. PID gains) the SatNOGS rotator controller (or a controller that supported by Hamlib) by using Hamlib python bindings and ROS.
This script could be using also in the SatNOGS-client in combination with:

• the support for flipping the antenna during high elevation passes or other solutions to trans-meridian passes
• SatNOGS rotator un-winder utility
• Rotator threshold angle (tolerance)
• Implement speed controller (for controller that support this) to make the movements of rotator more smooth

[azisi]

I almost finalize the ROS package for SatNOGS controller.

By using rqt runtime monitor, rqt plot and dynamic reconfigure can control
and monitor the SatNOGS rotator. Also by using python bindings of Hamlib, we discovered issues in easycomm3 implementation in Hamlib like this, thanks @Acinonyx and @fredy for the help.