If Facts are referenced from FactPanelController, we need to reference
count the AutoPilotPlugin such that it doesn’t get destroyed until
after the FactPanelController is destroyed.

This prevents the indicator from overlapping the “Flight Modes” text

- More more on making QGCView real
- Converted Parameter Editor to QGCView

Sorting source and headers while at it.

Initial rendering of Waypoints

- You can now cancel parameter change
- Tablete friendly

Use default font wherever possible. Where that doesn’t work, use
ScreenTools::dpiAdjustPointSize.