[core, mod_verto] check for camera change and trigger new constraints

src/include/switch_types.h

@@ -1634,6 +1634,7 @@ typedef enum {
 	CF_REATTACHED,
 	CF_VIDEO_READ_TAPPED,
 	CF_VIDEO_WRITE_TAPPED,
+	CF_DEVICES_CHANGED,
 	/* WARNING: DO NOT ADD ANY FLAGS BELOW THIS LINE */
 	/* IF YOU ADD NEW ONES CHECK IF THEY SHOULD PERSIST OR ZERO THEM IN switch_core_session.c switch_core_session_request_xml() */
 	CF_FLAG_MAX