libqmi-glib,qmicli: added new Telit General Modem Service (GMS).
And once again :)
Note: had to additionally modify build-aux/qmi-codegen/utils.py because it was adding qmi-enums-${service}.h to all services but CTL (now - to all services but CTL and GMS).
Added Telit's General Modem Service to libqmi-glib.
Messages supported: QMI_GMS_TEST_SET_VALUE and QMI_GMS_TEST_GET_VALUE.
Also in qmicli, added corresponding commands:
--gms-test-get-value
--gms-test-set-value=[mandatory-value][,[optional-value]]