cli: specify common options in a new group

Actions on modems from specific interfaces, like 3GPP, will also need the modem
to be specified.

The new 'Common' option group will handle all options to specify objects.

cli/mmcli.c

@@ -32,6 +32,7 @@
 #include <libmm-glib.h>
 
 #include "mmcli.h"
+#include "mmcli-common.h"
 
 #define PROGRAM_NAME    "mmcli"
 #define PROGRAM_VERSION PACKAGE_VERSION
@@ -177,6 +178,8 @@ main (gint argc, gchar **argv)
     context = g_option_context_new ("- Control and monitor the ModemManager");
 	g_option_context_add_group (context,
 	                            mmcli_manager_get_option_group ());
+    g_option_context_add_group (context,
+                                mmcli_get_common_option_group ());
 	g_option_context_add_group (context,
 	                            mmcli_modem_get_option_group ());
 	g_option_context_add_group (context,