- centralize logic for selecting a preferred calibration slot
- automatically use existing calibration slot if it exists, otherwise
find first available slot, with a preference for a requested index
- existing commander calibration methods rewrite all calibration slots
to match current sensor ordering
The calibration is not found in HITL mode. Therefore, I suggest to
ignore this step and assume the calibration is fine.
This mostly fixes the preflight check indicator in QGC, arming was (for
some reason?) already possible.
* PreFlightCheck: remove unused reportFailures flag
* Commander: pull all pre flight checks together on the PreFlightCheck class
* PreFlightCheck: separate checks into their own files