Create and return a new reftrack node

        :returns: the new reftrack node
        :rtype: str
        :raises: None

def create_refobj(self, ):
        """Create and return a new reftrack node

        :returns: the new reftrack node
        :rtype: str
        :raises: None
        """
        n = cmds.createNode("jb_reftrack")
        cmds.lockNode(n, lock=True)
        return n