Allow plugins to change/replace toolbar indicators.

Fixed a small binding loop in RallyPointEditorHeader.qml

Add bool support to FactSystem

Update mavlink v2

Convert bool settings to SettingsFact

FactSystem: String support

Complex item visual dynamically added to map

Addition of "Abort" button

Fly view: Use new ToolStrip

Add/use new SettingsManager implementation

* Holds all the settings for the app
* Allows core plugin to override default values

Fixed Wing landing pattern starting point

Removing toolbar controller

Instrument widgets

Removing dead weight. This entire controller should be removed and the functionality moved to Vehicle.

Also added ui support for multiple complex item types

Fix regression bug with Bluetooth.

Use new ToolStrip control in Plan View

Fix analyze view to work for mavlink 2.0

Support for default mission item altitude setting