Sends a POST to /1.0/verifications/ using this post-data:

            {"domain_href": "/1.0/domains/2",
             "port":80,
             "ssl":false}

        :param domain_resource_id: The domain id to verify
        :param port: The TCP port
        :param is_ssl: Boolean indicating if we should use ssl

        :return: The newly created resource

def verification_add(self, domain_resource_id, port, is_ssl):
        """
        Sends a POST to /1.0/verifications/ using this post-data:

            {"domain_href": "/1.0/domains/2",
             "port":80,
             "ssl":false}

        :param domain_resource_id: The domain id to verify
        :param port: The TCP port
        :param is_ssl: Boolean indicating if we should use ssl

        :return: The newly created resource
        """
        data = {"domain_href": self.build_api_path('domains',
                                                   domain_resource_id),
                "port": port,
                "ssl": 'true' if is_ssl else 'false'}
        url = self.build_full_url(self.VERIFICATIONS)
        return self.create_resource(url, data)