Reworked the styling UI. Now there are 4 options: light, dark, custom_light, and custom_dark. Things don't quite work right, but the proof-of-concept is done.

Change so Waypoints are the same across maps, and offline waypoints get appeneded to the end of the MAV's waypoint list on connect

Added satelliteCount to the QuickView, and made quickview a default display on the mission planner view.

Change so mission view is default instead of unconnected, fixing a bug causing misloading of tool widgets

Additions for View navigation, including saving dockwidget locations and status. Also added remembering of "Advanced Mode" between restarts of QGC

Changes for the new "View" navigation, and fixes to get most of the dockwidgets working with the new view system

view, rather than having universal dock widgets.