Merge pull request !6873 from lihongkang/v2_master

Merge pull request !6855 from gongdaguo/modify_download_link

Merge pull request !6878 from fuzhiye/tmp

Merge pull request !6868 from EricZ/fix_security_issue

Merge pull request !6429 from liubuyu/master

Merge pull request !6822 from liuxiao93/fix-op-list

Merge pull request !6800 from chenzupeng/master-lite

Merge pull request !6862 from peixu_ren/custom_bijector

Merge pull request !6861 from caojian05/ms_master_lstm_doc_update

Merge pull request !6847 from wukesong/alexnet-shell-modify

Merge pull request !6851 from kisnwang/fix-cpu-kernel-not-support-error

Merge pull request !6854 from xulei/lite_test0905

Merge pull request !6845 from jiangzhenguang/remove_music_auto_tagging_to_research

Merge pull request !6857 from cjh9368/quant_same_datatype

Merge pull request !6454 from liuchao/master

Merge pull request !6844 from YuJianfeng/master

Merge pull request !6775 from liubuyu/op_support

Merge pull request !6307 from MahdiRahmaniHanzaki/c_func

Merge pull request !6017 from ZiruiWu/per_batch_map_multi_col

Merge pull request !5930 from Jamie/CacheOp_dev

add string implementation, can handle partial string slices

finish core implementation, added Index object

fix up the logic

add in new SliceOption object, cleaning up tests

decided to use project after batch as well

per_batch_map 1->x colunm works

add more test case

add test cases, project after map

col order hahaah

fix ci

add test cases

addr review cmts

ci

fix build err

fix test case failure

ci