Merge pull request #8924 from DonLakeFlyer/FirmwareVehicleClass

src/FirmwarePlugin/APM/APMFirmwarePlugin.cc

src/FirmwarePlugin/APM/APMFirmwarePlugin.h

src/FirmwarePlugin/APM/APMFirmwarePluginFactory.cc

src/FirmwarePlugin/APM/APMFirmwarePluginFactory.h

src/FirmwarePlugin/FirmwarePlugin.cc

src/FirmwarePlugin/FirmwarePlugin.h

src/FirmwarePlugin/FirmwarePluginManager.cc

src/FirmwarePlugin/FirmwarePluginManager.h

src/FirmwarePlugin/PX4/PX4FirmwarePlugin.cc

src/FirmwarePlugin/PX4/PX4FirmwarePlugin.h

src/FirmwarePlugin/PX4/PX4FirmwarePluginFactory.cc

src/FirmwarePlugin/PX4/PX4FirmwarePluginFactory.h

src/FirstRunPromptDialogs/OfflineVehicleFirstRunPrompt.qml

src/MissionManager/MissionCommandList.h

src/MissionManager/MissionCommandTree.cc

src/MissionManager/MissionCommandTree.h

src/MissionManager/MissionController.cc

src/MissionManager/MissionControllerTest.cc

src/MissionManager/PlanMasterController.cc

src/PlanView/MissionItemEditor.qml