Add Guided mode support

src/FirmwarePlugin/APM/APMFirmwarePlugin.cc

src/FirmwarePlugin/APM/APMFirmwarePlugin.h

src/FirmwarePlugin/APM/ArduCopterFirmwarePlugin.cc

src/FirmwarePlugin/APM/ArduCopterFirmwarePlugin.h

src/FirmwarePlugin/FirmwarePlugin.cc

src/FirmwarePlugin/FirmwarePlugin.h

src/FirmwarePlugin/PX4/PX4FirmwarePlugin.cc

src/FirmwarePlugin/PX4/PX4FirmwarePlugin.h

src/FlightDisplay/FlightDisplayView.qml

src/FlightDisplay/FlightDisplayViewMap.qml

src/FlightDisplay/FlightDisplayViewWidgets.qml

src/MissionManager/MissionManager.cc

src/MissionManager/MissionManager.h

src/Vehicle/Vehicle.cc

src/Vehicle/Vehicle.h

src/ui/toolbar/MainToolBarIndicators.qml