Also added insert pattern support to hamburger

Added top/bottom alignment state to map scale
Allow disabling instrument widget altogether
Added an otherwise redundant row to PlanToolbar so it matches the same button position as the main toolbar
Fixed typo (Math.max()) in ScreenTools
Fixed Javascript Exception in OfflineMap
Increased the import window size in OfflineMap
Added function to MainWindow to disable toolbar for a truly modal dialog
Added code so clicking on an open toolbar indicator will cause it to close

Remove showSensorCalibrationOrient

Replaced by new settings capability

These are covered by SettingsGroups now

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

Allow plugin to define default font size, toolbar height and option to display/hide plan view selector.

Made QGCCorePlugin derive from QGCToolBox and expose everything through the same mechanism as everything else.