Merge pull request !5667 from zyli2020/code_refactor

Merge pull request !5745 from danishnxt/GPU_two

Merge pull request !5717 from linqingke/fasterrcnn

Merge pull request !4872 from TinaMengtingZhang/cpp-api-tfrecord-dataset

Merge pull request !5743 from pengyongrong/op_format_toNC4HW4

Merge pull request !5703 from zhaodezan/master

Merge pull request !5721 from shenwei41/sw_master

Merge pull request !5730 from kisnwang/async-run-graph

Merge pull request !5696 from Xiaoda/20-moving-multi-graph-interface-internal

Merge pull request !5729 from lichen/add_batchnormex_op

Merge pull request !5742 from hangq/master

Merge pull request !5740 from chenweifeng/gpu-momentum-fusion

Merge pull request !5732 from yepei6/mobilenetv2_finetune

Merge pull request !5697 from wangchangkai/master

Merge pull request !5733 from peixu_ren/custom_pp_ops

Merge pull request !5728 from wukesong/modify_init

Merge pull request !5734 from fary86/fix_adam_opt_bug

2. remove version string in build_aar.sh

Merge pull request !5722 from yao_yf/semi_auto_parallel_reshape_parameter_has_another_user

Merge pull request !5708 from wangmin0104/master

Merge pull request !5427 from 陶云浩/master

Merge pull request !5716 from ZPaC/master-unify-float-to-int-cast

Merge pull request !5648 from MahdiRahmaniHanzaki/get-col-name

Merge pull request !5680 from wandongdong/master

Merge pull request !5665 from yoonlee666/bugfix