Create a fork relation.

        This DO NOT create a fork but only adds a link as fork the relation between 2 repositories

        :param project_id: project id
        :param from_project_id: from id
        :return: true if success

def createforkrelation(self, project_id, from_project_id):
        """
        Create a fork relation.

        This DO NOT create a fork but only adds a link as fork the relation between 2 repositories

        :param project_id: project id
        :param from_project_id: from id
        :return: true if success
        """
        data = {'id': project_id, 'forked_from_id': from_project_id}

        request = requests.post(
            '{0}/{1}/fork/{2}'.format(self.projects_url, project_id, from_project_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