replace azure hosted model to hugging face hub

convlab/deploy/dep_config.json

convlab/dst/comer/multiwoz/comer.py

convlab/dst/comer/multiwoz/function.py

convlab/dst/mdbt/multiwoz/dst.py

convlab/dst/sumbt/multiwoz/sumbt.py

convlab/dst/trade/crosswoz/trade.py

convlab/dst/trade/crosswoz/train.py

convlab/dst/trade/multiwoz/trade.py

convlab/dst/trade/multiwoz/train.py

convlab/e2e/damd/multiwoz/damd.py

convlab/e2e/rnn_rollout/deal_or_not/README.md

convlab/e2e/rnn_rollout/deal_or_not/model.py

convlab/e2e/sequicity/camrest/README.md

convlab/e2e/sequicity/camrest/sequicity.py

convlab/e2e/sequicity/multiwoz/README.md

convlab/e2e/sequicity/multiwoz/sequicity.py

convlab/laug/Text_Paraphrasing/Text_Paraphrasing.py

convlab/nlg/scgpt/multiwoz/scgpt.py

convlab/nlg/sclstm/camrest/README.md

convlab/nlg/sclstm/camrest/sc_lstm.py