Added missing files

.gitignore

qml/resources/qgroundcontrol/toolbar/connect.png

qml/resources/qgroundcontrol/toolbar/disconnect.png

qml/resources/qgroundcontrol/toolbar/donate.png

qml/resources/qgroundcontrol/toolbar/flightdata.png

qml/resources/qgroundcontrol/toolbar/flightplanner.png

qml/resources/qgroundcontrol/toolbar/hardwareconfig.png

qml/resources/qgroundcontrol/toolbar/helpwizard.png

qml/resources/qgroundcontrol/toolbar/simulation.png

qml/resources/qgroundcontrol/toolbar/softwareconfig.png

qml/resources/qgroundcontrol/toolbar/terminal.png