Mount Settings and Meridian Flip Behavior

[thomazach]

The mount uses its own firmware to slew to a target and handle meridian flips. When the mount module is run, it would be best to make the mount's longitude and latitude settings match the settings.yaml file and enable meridian flips. Using the longitude and latitude in settings.yaml, the hemisphere should be determined and the mount settings should be adjusted accordingly. This improvement should be implemented into the mount module's connect_to_mount function. This can be done using the iOptron RS-232 Command Language V2.5.

Serial mount commands of interest from the above pdf:
“:SgsSSSSSS#” - sets the current longitude
“:StsSSSSSS#” - sets the current latitude
“:SHE0#” or “:SHE1#” - sets the hemisphere
“:SMTnnn#” - sets the treatment of meridian flip