Implement support for Language Resource Switchboard in DACE
Implement support for Language Resource Switchboard in DACE. More info in the mapping table https://docs.google.com/spreadsheets/d/17E6oJ_mXZFXNhQWhvOMmPLu5reJKImwI5OP44yudfe8/edit#gid=546221262 and in the original task: #6 (closed)