[ENH] Fieldline opm plugin

[juangpc]

This plugin interacts with the Fieldline's Python api directly. To do:

• [ ] build bridge with python methods.

• [ ] verify non-dependence on python environments.

• [x] finish mock fieldline client.

• [x] fix crash on shutting down.

• [ ] add different color to different sensor states. Two per state so that sensor blinks (not all states blink).

• [ ] report on compensation fields.

• [ ] rebuild whole gui on new init method.

• [ ] save config information in a file to load between runs. (and inits()).

• [ ] sensor renaming.

• [x] solve crit issue being printed to terminal upon init the fieldline plugin. (not solved, it is a qt thing).

• [x] Finish find ip reconfiguration.

todo later.

• [ ] finish get_chassis_list, get_fields, get_serial_numbers, get_chassis_serial_number, get_version get_sensor_state, get_calibration_value