Fix binding from external Fact changes

Don't query terrain if no location

Use new SplitIndicator control

Allow split of current segment

Correctly handle command changes from no-coordinate item to coordinate item

Enable ArduPilot motor testing

Remove unnecessary signaling

Use QmlObjectListModel::begin/endReset to keep Qt from blowing it's brains out with too many updates

Update/add support for external resetModel usage

Remove testing ifdef

Directions arrows in Fly View

Hide waypoint indicators unless they are really needed

Remove child item display

Fix initial load for Plan view

FW Landing slope heights display

New QGCDynamicObjectManager support

Add Terrain toggle to MapScale control

Updated visuals

Fix missing waypointLinesChanged signal. Remove unnecessary directionArrowChanged signal.

More work on direction arrows

Move Log Replay bar to Window footer

No need for all the null checks with correct qml shutdown

Delete qml engine prior to toolbox

Hide sequence numbers

Change entry/exit, use new MapLineArrow control

New MapLineArrow control

Use new TransectStyleMapVisuals base control

New base class control for Survey/Corridor

Make visibility work

Only show full visuals when selected