Add a new ssh key for the user identified by id

        :param user_id: id of the user to add the key to
        :param title: title of the new key
        :param key: the key itself
        :return: true if added, false if it didn't add it (it could be because the name or key already exists)

def addsshkeyuser(self, user_id, title, key):
        """
        Add a new ssh key for the user identified by id

        :param user_id: id of the user to add the key to
        :param title: title of the new key
        :param key: the key itself
        :return: true if added, false if it didn't add it (it could be because the name or key already exists)
        """
        data = {'title': title, 'key': key}

        request = requests.post(
            '{0}/{1}/keys'.format(self.users_url, user_id), headers=self.headers,
            data=data, verify=self.verify_ssl, auth=self.auth, timeout=self.timeout)

        if request.status_code == 201:
            return True
        else:
            return False