Change Command only supported for Simple Items

Adding missing qgcView to QGCMapPolygonVisuals instance in SurveyMapVisual.qml

Update the user model to a single controller instead of multiple

Fixed a pile of bugs as well

Also added insert pattern support to hamburger

Changed (selected) mission item color to primaryButton instead of buttonHighlight
Adjusted some colors for better contrast
Removed a few JavaScript exceptions caused by the order of object destruction

Also added ui support for multiple complex item types

- Shot Interval in Survey
- Much change to time/distance calc