Plus low battery announce changes

* Map type now set from General settings
* No map type control in maps

This makes text show up better on map images

Added a second polygon. This polygon is updated from the first polygon at each mouse click and is what will ultimately be saved upon completion of drawing.

- Offline maps new set defaults to default map type
- Plan/Fly views use MapScale control

Android done.

UI Tweaks for all mobile platforms.

Also additional major Mission usability changes

Also remove concept of “interactive” since it is no longer needed

Also show QGC position on map