Add a service record

        :param ipaddr: IP Address
        :param proto: Protocol (tcp, udp, info)
        :param port: Port (0-65535)
        :param fields: Extra fields
        :return: (True/False, t_services.id or response message)

def add(self, ipaddr=None, proto=None, port=None, fields=None):
        """
        Add a service record

        :param ipaddr: IP Address
        :param proto: Protocol (tcp, udp, info)
        :param port: Port (0-65535)
        :param fields: Extra fields
        :return: (True/False, t_services.id or response message)
        """
        return self.send.service_add(ipaddr, proto, port, fields)