Merge pull request !3537 from riemann_penn/add_sparse_operator

Merge pull request !3727 from xiefangqi/fuzz_issue_pad_01

Merge pull request !3645 from chenzhongming/master

Merge pull request !3671 from ms_yan/vgg_optimize

add mindspore.hub and change model_zoo

Merge pull request !3657 from yangzhenzhang/add-stridedslice-op

Merge pull request !3405 from gziyan/fix_optimizer_parallel

Merge pull request !3574 from hewei/rename_user_data_func

Merge pull request !3603 from jiangzhiwen/fix_column_names_exceeded

Merge pull request !3620 from 张学同/to_merge

Merge pull request !3612 from changzherui/mod_case

Merge pull request !3394 from XunDeng/pp_poc_v3

Merge pull request !3551 from nhussain/fix_cpp_only_build

Merge pull request !3543 from lianliguang/unify-primitive

Merge pull request !3472 from Xiaoda/13-add-gpu-costmodel

Merge pull request !3528 from Simson/push-to-opensource

Merge pull request !3435 from yangzhenzhang/add-tile-op

added cdf, logcdf, survival, logsurvival, entropy, mode, cross_entropy wrapper

Merge pull request !3449 from MahdiRahmaniHanzaki/cifar100-c-api

merge the script

optimize the script

Merge pull request !3519 from anzhengqi/remove-log

Merge pull request !3500 from lirongzhen1/master

Merge pull request !3525 from hewei/fix_parameter_bug

1. Parameter's init_data() should have no effect if default_input already set;
2. This bug is introduced by 'decouple ParamValue from python';
3. An unit test case is added to ensure the right init_data() behavior.

Merge pull request !3425 from fangzehua/avgpool

Merge pull request !3349 from liubuyu/master

Merge pull request !3324 from fangzehua/reduce_any