The status information is represented by a null-terminated string with format recognizable by OTNS. Each call to otPlatOtnsStatus can send multiple statuses, separated by ';', e.x. "parid=577fbc37;lrid=5". Each status contains key and value separated by '='. Status value can be further separated into multiple fields using ',', e.x. "ping_request=fdde:ad00:beef:0:459e:d7b4:b65e:5480,4,112000".
New statuses should follow these conventions.
Currently, OTNS only supports virtual time simulation.