remove code from branch/liurishen to branch/master

modify format

modify format for python

modify format for another time

modify format for another time 2

fix import error

test pass on 310 and download all files

modify format

modify format another time

modify format another time

modify format another time

add missed files

Merge pull request !162 from gengdongjie/fix_issues_master

Merge pull request !137 from Shawny/deepffm

Merge pull request !158 from 徐永飞/master

Merge pull request !140 from 周莉莉/master

Merge pull request !119 from Sierkinhane/master

Merge pull request !110 from HuKang/master

Merge pull request !129 from zhanghuiyao/Add_taskset_for_FaceAttribute

Merge pull request !125 from zhanghuiyao/Add_taskset_for_yolov4

Merge pull request !82 from zhouneng/code_docs_fix_issue_I48PVI

Merge pull request !89 from Atlas_hrp/master

Merge pull request !97 from chenweitao_295/centerface_shell

Merge pull request !100 from lvmingfu/code_docs_master1

[修改人] haoripei
[审核人] chenshushu

[模型训练] 支持r1.3分支resnet50图编译保存和加载，ckpt带策略保存和pangu_alpha续训-同步r1.3分支代码到master
[修改人] haoripei
[审核人] chenshushu

Merge pull request !83 from chenhaozhe/fix-links

Merge pull request !93 from huangbo/master

Merge pull request !61 from hjxcoder/dnet

Merge pull request !70 from Shawny/vgg19_master

Merge pull request !70 from Shawny/vgg19_master

Merge pull request !80 from huangxinjing/fix_pangu_gpu_error

Merge pull request !73 from huangxinjing/fix_pangu_gpu_error

Merge pull request !41 from zhouneng/code_docs_fix_issue_I43AM7

Merge pull request !41 from zhouneng/code_docs_fix_issue_I43AM7

Merge pull request !74 from chenhaozhe/fix-crnn-version-dismatch