Improve Sub's leak sensor labeling for better clarity

Show mission time in minutes

Correct altitude usage for Change Altitude

Filter out calibration messages

No flaps for multi-rotor

New vehicle health display using SYS_STATUS info

Better Plan view map viewport handling

Change default takeoff alt to 3 meters

- Incorrect signaling causing dirty but to be incorrect
- Remove all not working
- Min fence point count incorrect

This gets it above your head

Update ArduSub mocklink parameter file.

Add QGC version info to bottom of Settings/General

Checking for MAVLink 2.0 when first message is received.

MAVLink consistency

Replacing a few placeholder icons with real ones.

I18N

Mavlink log uploader

Moving source files into Vehicles as it is a more coherent place.