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

Camera Section: Wording change

Fix MAV_CMD_VIDEO_START_CAPTURE usage

Mavlink spec changed

Camera Section: Add support for Take Photo

Move set camera photo mode to be first item

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

Allow UDP auto connect to be controlled through settings