[DSv3]: Add Tokenizer Config for DSv3#2650

hushenwei2000 wants to merge 3 commits intoPaddlePaddle:developPaddlePaddle/PaddleFormers:developfrom

hushenwei2000:fix_dsv3_tokenizer_confighushenwei2000/PaddleFormers:fix_dsv3_tokenizer_configCopy head branch name to clipboard