* add solov2 model

* fix train batch size

* add solov2_r101_vd_fpn_3x

* fix batch size and update modelzoo

* refactor code of solov2

* fix deploy/python

fix compile error in code
modify code for inference

* deploy code support camera

* add PPYOLO
Co-authored-by: Nlongxiang <longxiang@baidu.com>

* fix voc dataset and docs

* add custom datsset demo

* python deploy add log
* deploy add log & benchmark
* Update infer.py

* Add TesnorRT support in cpp deployment
* Change putText style

* fix export_model doc link error

* sort out release/0.3 docs

* add new CHANGELOG

* add yolov4 in changelog

* fix with_background in export model

* fix coco_eval background

* add map_fps fig

* add runtime log& script support set run_mode
* update code

* fix deploy

* deploy/cpp : Update cpp ineference solution

* add README.md to deploy

* deploy/cpp : add PadStride

* deploy/cpp : add output visualization

* deploy/cpp: add video support

* fix coding style problem

* deploy/cpp : add README.md

* deploy/cpp : update docs

* deploy/cpp : update linux build scripts

* deploy/cpp : update linux build docs

* udpate docs

* deploy/cpp : update windows build docs

* depoy/cpp: fix coding style

* fix coding style

* Create CMakeSettings.json

* Update README.md

* Update windows_vs2019_build.md

* Update CMakeLists.txt

* Update linux_build.md

* Update CMakeLists.txt

* deploy/cpp : update linux build script

* update doc structures and support arch Face

* support face detection in python inference

* support face detection in python deploy