GCS Added useSessionManaging option to globalsettings
GCS Added generalSettingsChanged signal to globalsettings
GCS Added useSessionManaging option to globalsettings ui
GCS/TelemetryManager set all objects as present when the gcs starts
GCS/TelemetryMonitor allow for user selectable non managed sessions
Merge pull request #1281 from guilhermito/optional_session_managing

Optional session managing