Merge pull request #4060 from DonLakeFlyer/GlobalFactMetaData

qgroundcontrol.qrc

src/FactSystem/FactGroup.cc

src/FactSystem/FactGroup.h

src/FactSystem/FactMetaData.cc

src/FactSystem/FactMetaData.h

src/FactSystem/SettingsFact.cc

src/FactSystem/SettingsFact.h

src/JsonHelper.cc

src/JsonHelper.h

src/QmlControls/QGroundControlQmlGlobal.cc

src/QmlControls/QGroundControlQmlGlobal.h

src/QmlControls/QGroundControlQmlGlobal.json

src/Vehicle/BatteryFact.json

src/Vehicle/GPSFact.json

src/Vehicle/VehicleFact.json

src/Vehicle/VibrationFact.json

src/Vehicle/WindFact.json

src/ui/preferences/GeneralSettings.qml