Compass: display calibration failure message

On the Setup / Mandatory Hardware / Compass page used for calibration, if a compass fails to calibrate MP restarts the calibration. This is fine but it would be best to display the index number of the compass and the reason for the failure. The list of reasons for failure are in the [MAVLink MAG_CAL_STATUS enumeration](https://mavlink.io/en/messages/common.html#MAG_CAL_STATUS). So in particular "BAD ORIENTATION" (meaning that the compass does not seem to be moving with the autopilot) and "BAD RADIUS" (whose meaning I do not fully understand) should be reported

Start at the Setup / Mandatory Hardware / Compass calibration page and trace how calibration failures are handled before the calibration restarts. Use the MAVLink MAG_CAL_STATUS enumeration as the source for failure reasons. Done means the page displays the failed compass index and its reported reason, including BAD ORIENTATION and BAD RADIUS.

Written by the indexing model from the issue text.