Prints round init information about `horizon` and `non_fluents`.

def _render_round_init(self, horizon: int, non_fluents: NonFluents) -> None:
        '''Prints round init information about `horizon` and `non_fluents`.'''
        print('*********************************************************')
        print('>>> ROUND INIT, horizon = {}'.format(horizon))
        print('*********************************************************')
        fluent_variables = self._compiler.rddl.non_fluent_variables
        self._render_fluent_timestep('non-fluents', non_fluents, fluent_variables)