Please add "tokenizer_class" in "config.json"

[Yuta Hayashibe]

Please add tokenizer_class in config.json like

  "tokenizer_class": "T5Tokenizer",

.
This enables use of AutoTokenizer like

tokenizer = AutoTokenizer.from_pretrained("rinna/japanese-gpt-1b")

instead of

tokenizer = T5Tokenizer.from_pretrained("rinna/japanese-gpt-1b")

(Other models can be changed in the same way.)

Related to: cl-tohoku/bert-japanese#24

[Zhao Tianyu]

Thank you. It is now solved in this commit.