address cmt

review cmts

From: @yangzhenzhang
Reviewed-by: @stsuteng,@kisnwang
Signed-off-by: @stsuteng

From: @ezphlow
Reviewed-by: @pandoublefeng,@heleiwang
Signed-off-by:

From: @anancds
Reviewed-by: 
Signed-off-by:

From: @kisnwang
Reviewed-by: 
Signed-off-by:

From: @irmo
Reviewed-by: 
Signed-off-by:

From: @alex-yuyue
Reviewed-by: 
Signed-off-by:

Signed-off-by: alex-yuyue <yue.yu1@huawei.com>

From: @xulei2020
Reviewed-by: @heleiwang
Signed-off-by:

From: @kisnwang
Reviewed-by: 
Signed-off-by:

From: @luoyang42
Reviewed-by: @nsyca,@pandoublefeng,@jonyguo
Signed-off-by: @jonyguo

From: @wilfchen
Reviewed-by: @limingqi107,@cristoval
Signed-off-by: @cristoval

From: @jkl_lee
Reviewed-by: @mikef,@nsyca
Signed-off-by: @nsyca

fix test err

fix ci round 1

fix ci round 2

add col_order to batch_node

minor fix

From: @tiancixiao
Reviewed-by: 
Signed-off-by:

Merge pull request !8248 from EricZ/helper_dep_removal

Merge pull request !8106 from kisnwang/add-cpu-adam-delta

Merge pull request !8194 from nsyca/opt3

Merge pull request !8135 from luoyang/c-api-pyfunc

Merge pull request !8200 from shenwei41/new_master

Merge pull request !7911 from anancds/kv-patch

Merge pull request !8208 from EricZ/helper_dep_removal

Signed-off-by: zhoufeng <zhoufeng54@huawei.com>

staging II

clean up

further clean up

fix merge conflict with 8139

fix complie err

Merge pull request !8096 from h.farahat/datasetNode