add aishell-1 rnnt egs

aky15

2023-03-21 8a100b731efba8c18f7e7b6cb1cb04ded94248b3

 funasr/punctuation/abs_model.py

@@ -25,3 +25,7 @@
    @abstractmethod
    def forward(self, input: torch.Tensor, hidden: torch.Tensor) -> Tuple[torch.Tensor, torch.Tensor]:
        raise NotImplementedError

    @abstractmethod
    def with_vad(self) -> bool:
        raise NotImplementedError