Merge pull request !7529 from zhuxiaochen/1020_allsimplify_1.0

linting errors fix

comments cleanup

typo fix in doc

added more tests, fixed some formatting

changed expected dx values for linter

pylint const data fix

Merge pull request !7483 from 34bunny/GPU-ucs

Merge pull request !7537 from Peilin/cbg-new-gpu-ops-repeat_elements

fixed ci

fixed ci

addressed comments

Merge pull request !7482 from JonathanY/roialign_zero

Merge pull request !7548 from zhouyuanshen/master

Merge pull request !7478 from caifubi/dynamic_shape

Merge pull request !7545 from VectorSL/int64

Merge pull request !7440 from lingyunli63/GraphKernelCSE

Merge pull request !7173 from wanyiming/support_1d_matmul

Merge pull request !7236 from gengfei/1012_simplify_1.0

Merge pull request !7276 from baihuawei/conv2d

Merge pull request !7227 from baihuawei/fixslice

Merge pull request !7238 from caifubi/dynamic_shape

Merge pull request !7030 from yanzhenxiang2020/br_meshgrid

Merge pull request !6971 from chenweifeng/tensoradd_inplace

Merge pull request !6903 from peixu_ren/custom_pp_ops

Merge pull request !6977 from fangzehua/aug_cache

Merge pull request !6018 from h.farahat/ms_nonsink_epochs

Merge pull request !6965 from baihuawei/fixsub

Merge pull request !6912 from baihuawei/fixslice

Merge pull request !6914 from baihuawei/fixsoftmax

Merge pull request !6772 from chenweifeng/test-case-seed