multiple polygons

need to fully implement vertexvisibility

[Survey transects generation] move some of the logic handling out of function that handles only one polygon

Use correct terminology for Altitude values

Option driven firmware version check

Turn Orbit on

Allow custom builds to turn off firmware version check

FW Landing Pattern: Support for stop photo/video. Plus item unit test.

Signed-off-by: Patrick José Pereira <patrickelectric@gmail.com>

Fix flag checks

Support new ArduPilot bootloader PID/VIDs

Update Rover flight modes

Clarify Base Position Altitude frame of reference