Polygon Editing: Use better z-ordering to handle cases where drag/split overlay each o…

This gives drag clicks precedence over splitting.

[WIP] First stab at GPS RTK indicator

Fix for Safety setup backwards compatability on Sub-3.4

Decouple VideoReceiver from VideoManager.

Enable only the gestures we're interested in.

Icon is not visible if no GPS is connected
Icon is red, as long as survey-in is active

Fixes

CameraSection: Scanning fixes plus unit test

Fixes: Camera Section visibility, mode file dialog support for delete

Update unit tests to catch this

Add firmware-specific factgroups

Solve error in survey input via windrose

Mission Settings: Work on usability

Plan: Better user model for Upload button

Survey: Handle case of transects < 2

Update PX4 airframe and parameter meta data from master

Support for V3 flashing

Camera Section: Fix Time/Distance value visibility

Plan fixes: RTL waypoint line, Mission End dialog