Landing Pattern: Loiter to alt optional support

Fix disable of vehicle fw/type changes

Add note to help with confusion

QGCFileDialog remove separate mobile fileExtension properties

Clean up references to MainRootWindow globals

For VTOL and FW set default landing heading to takeoff heading when TakeoffMissionItem is added in PlanView

Fix typo

Convert to app units as needed

Switch to Controls 2 version of QGCButton

Split into Views and Tools

Telemetry Values bar at center bottom

Camera brand/model support. Use canonical camera names in Plan files.

VTOL Takeof/Landing Pattern work

supportedMissionCommands is vehicle class sensitive

Better handling of vehicle change state transitions

VIsual tweaks

Support for Vehicle and Firmware classes

Gradient units are degrees

Remove unused Shapes module causing AppImage to fail

Fix blank PlanView due to bad connection

Fix missing missionItem property set

Use new Transect common controls

Common control for terrain follow

Common control for Pattern tab bar

Fix  incorrect supportsTerrain reference

Initial support for global plan-wide altitude mode setting

Rework handling of fw/vehicle type with respect to conflicts with actual vehicle types.

ToolStrip rearchitecture for encapsulation and customization

Re-architect toolbar for better customization capabilities. Also use less real estate.

Rework Fly View into separate layers which can be customized at each layer.

Add support for Json file string translations

Major rework to support terrain profile display and terrain collision reporting

Propagate opacity and interactive properties to mission items
Set opacity to 0.5 for items that are not part of the current
edit view

Small visual tweaks and fixups for patterns

VTOL Landing Pattern support

New wizard done model

Drag of land/loiter maintains land distance/heading as appropriate

Out Survey polygons with KML save