* add PP-OCRv2

* add PP-OCRv2 benckmark

* update app

* update introduction

* update PP-OCRv2 introduction

* add pipeline of PP-OCRv2

* add PP-OCRv3

* update benckmark

* add paddleocr to requirements

* update

* support paddleocr 2.6.0.1

* rm print code

* add PP-OCRv2

* add PP-OCRv2 benckmark

* update app

* update introduction

* update PP-OCRv2 introduction

* add pipeline of PP-OCRv2

* add PP-OCRv3

* update benckmark

* test = add the PP-YOLOv2 Demo to ModerCenter

* test = update the PP-YOLOv2 Demo to ModerCenter

* test = update the PP-YOLOv2 Demo to ModerCenter

* test = add the folders for related models
Co-authored-by: NYang <yangyehua@baidu.com>

* fix log_path

* Update test_paddle2onnx.sh

* Update test_lite_arm_cpu_cpp.sh

* update cpp serving doc

* server build shell

* update serving cpp test doc

* fix typo

* update cpp serving doc

* server build shell

* Update serving_cpp.md

* remove gpu inference

* update serving tipc

* rm python version

* rm python version

* Update serving_python.md

* mv unset to prepare.sh

* update serving_cpp

* update prepare for serving and onnx

* update status check

* update serving prepare

* fix serving doc

* fix serving doc

* fix typo

* update paddle2onnx doc

* mv download_bin to server_cpp

* fix onnx doc

* Update prepare.sh

* modified cpp serving preprocess

* update prepare.sh

* sleep longer for serving

* add prototxt

* update train.py

* update train.py

* remove paddle.distributed.get_rank()

* add pact about

* fix doc

* fix comments

* add ptq aware

* fix

* add benchmark.png

* fix png and ptq

* fix tipc

* fix train_infer_python

* delete mkldnn trt

* fix cpp

* fix comment

* fix comment

* fix

* status_check

* fix comment

* add build cpp to prepare.sh

* [tipc] fix test_train_infer_python/cpp (#5516)

* add pact about

* fix doc

* fix comments

* add ptq aware

* fix

* add benchmark.png

* fix png and ptq

* fix tipc

* fix train_infer_python

* delete mkldnn trt

* fix cpp

* fix comment

* fix comment

* fix

* status_check

* fix comment

* add build cpp to prepare.sh

* add  for prepare.sh

* add pip install -r requirements

* fix comment

* [Tipc] fix prepare.sh for cpp infer (#5520)

* add pact about

* fix doc

* fix comments

* add ptq aware

* fix

* add benchmark.png

* fix png and ptq

* fix tipc

* fix train_infer_python

* delete mkldnn trt

* fix cpp

* fix comment

* fix comment

* fix

* status_check

* fix comment

* add build cpp to prepare.sh

* add  for prepare.sh

* add pip install -r requirements

* fix comment

* fix bug

* update auto_log install command

* add benchmark output statement

* update benchmark=True and add benchmark declaration

* add train_type prefix of inference log

* update test_train_inference_python.md

* rm prefix of inference log

* add O2 declaration(not support now)

* reset norm train script and tipc doc

* update fleet readme.md

* update images

* Update README.md

* Update train_fleet_infer_python.md

* Update train_fleet_infer_python.md

* update data_parallel.png

* update amp doc

* remove Reprodlogger related

* add save_dtype

* update train_amp_infer_python.md

* Add TIPC CPP Serving Doc

* Add TIPC CPP Serving Doc

* update doc

* Update doc

* add serving_cpp.md & template

* Update serving_cpp.md

* Update serving_cpp.md

* Update serving_cpp.md

* Update serving_cpp.md

* update serving_cpp

* update serving_cpp

* update serving_cpp

* update serving_cpp

* Add TIPC CPP Serving Doc

* Add TIPC CPP Serving Doc

* update doc

* add inference time info and more models link

* rm unused images

* fix infer for image dir

* fix readme