Merge pull request !2198 from h.farahat/mask_op

Merge pull request !2092 from qianlong21st/june_third

Merge pull request !2186 from Kang/opt

Merge pull request !2215 from caifubi/support-hccl-profiling

add CaseFold, NormalizeUTF8

add RegexReplace

add RegexTokenizer

add BasicTokenizer

add WordpieceTokenizer

add BertTokenizer

Merge pull request !1977 from JonathanY/randomwalk

Merge pull request !2188 from JesseKLee/deadcode

Merge pull request !2126 from ZhangQinghua/master

Merge pull request !2026 from MahdiRahmaniHanzaki/I1K3FL-random-resized-crop

Merge pull request !2028 from nhussain/fillOp_learning

Merge pull request !1790 from lianliguang/remove-the-useless-transdata-connected-with-the-control-depend

Merge pull request !2047 from huanghui/code-review

Merge pull request !1932 from jiangzhiwen/dataset/clue

Merge pull request !2029 from lixiachen/lixia/tensorrow

Merge pull request !1996 from huanghui/single-batchnorm-fission-pass

- Add new CreateTensors

Merge pull request !1983 from JesseKLee/sampler

support tensor slice using constexpr

remove tensorslice metagraph

add pynative testcases

Merge pull request !1913 from xiefangqi/xfq_support_coco

Merge pull request !1868 from huanghui/insert-memcpy-async-pass

Merge pull request !1944 from wangqiuliang/move-hook-function-to-primitivepy

Merge pull request !1928 from yoonlee666/deletereshape

2. mod cora and citeseer conversion script

Merge pull request !1957 from jiangjinsheng/issue_merge

Merge pull request !1873 from yanghaoran/master

Merge pull request !1874 from h.farahat/string_tensor_updates

- Support accepting Numpy of str as input
- Support batching strings
- Core logic of batch&pad is static
- Make Pad a utility function