* Add inference support for BERT.

* Update inference support for BERT.

* fix checkpoints problem.

* fix reader

* increase epoch from 100 to 200

* move coupletdataset to paddlenlp.dataset

* move coupletdataset to paddlenlp.dataset

export text classification model in static graph 

fix crf bug in paddlenlp

add gpt2 model for the paddlenlp

* refine transformer cpu

* delete run_pretrain.sh

* fix readme

* update doc

* add / for dir

* refine eval batch size

* update train

* update eval

* fix doc

* fix version bug

add peoplesner, fix msraner (#5183)

fix lac bug (#5190)

* add transformer for rc0

* predict no_grad

* update codes for senta benchmark

* support pad seq and bsz multi

* alter vocab size

* alter md5sum

* root for reader

* add static predict

* rm position_encoding_init

* fix static predict

* add the xpu support the the paddlenlp

* add the support xpu for the ernie and bert
Co-authored-by: Nwawltor <fanzeyang0904@hotmail.com>

* new chunk_eval

* np first

* add pad factor to pad vocab

* shuffle batch

* update reader

* update benchmark

* fix hung

* add shuffle batch

* update

* reader_seed to shuffle_seed

* seed for shuffle batch

* add more English embedding name

* fix doc bug

* delete useless description

* add comments of TokenEmbedding

* add embedding model info