Controls respect QGCPalette settings. Also added test window.

Starting point for real implementation

Summary page is also the launching spot for the setup screens. No more
left hand set of buttons.

Allows parameter access from QML among other things

Handy for testing without a real board

corrented file name

Instantiate a PX4 config view in PX4 mode from start, since boards with just the bootloader (or no working telemetry) cannot be flashed else.

Implementation of Battery Monitor configuration, and addition of AP2ConfigWidget, which automatically handles UAS connections to allow for simpler configuration window code.