Change tool close to more of a "Back" model

Clean up references to MainRootWindow globals

Press and Hold on Arm will change it to Force Arm

Fix handling of popout analyse window

Fix Drawer closePolicy/interactive

Split into Views and Tools

Telemetry Values bar at center bottom

More flight mode, vtol mode, armed into main status

Ready To Fly support based on MAV_SYS_STATUS_PREARM_CHECK

Move GuidedActionsController references to global

Support stacked component dialogs

Remove altitude mode warning which was causing recursion into dialog display and view switch problems

Remove missing support for QGCView fact missing overlays

Tweaks to toolbar visibility

Modified support for multiple first run pages. Added first run for offline vehicle settings.

Added configurable value grid to toolbar

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.

More FlyView encasulation. Make QGCPipOverlay completely self contained

More work on encapsulation in Fly View

App messages now use simple modal message dialogs. Vehicle messages continue to use non-modal popup.

New QGCPopupDialog mechanism

QGCPopupDialog support

added function to FlightView to show the checklist if switching views from a view other than FlightView and if checklist should be shown

Android OpenSSL support

Prevent view switching apis support a stack

View switch prevention support

Check for pending param writes on app close

Save/load main window state