Missing dependencies for video streaming on iOS.

Some work for iOS

APM stack mission support

Also merged MissionController and MissionEditorController into single
MissionController implementation

Fix z order

Fix channel index reordering notification

QtCreator now default build environment

Add status text and voice output support

Use tablet position for initial Fly/Plan location

Preliminary work on the Flight View

Add Qml Coding Style

Plus some C++ tweaks

Text to Speech Work