Added execute tests for server

From: @mahdirahmanihanzaki
Reviewed-by: @nsyca,@robingrosman
Signed-off-by: @nsyca

fix CI round I

fix ci round II

address review cmts

fix ci round II

From: @shenwei41
Reviewed-by: @pandoublefeng,@heleiwang
Signed-off-by: @pandoublefeng

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

Fix bug in batch getDatasetSize
Add getDatasetSize support for generator_op.cc
Fix header guards of some files

From: @xulei2020
Reviewed-by: @liucunwei,@pandoublefeng
Signed-off-by: @liucunwei

From: @mahdirahmanihanzaki
Reviewed-by: @nsyca,@jonyguo
Signed-off-by: @nsyca

From: @ziruiwu
Reviewed-by: @robingrosman,@nsyca
Signed-off-by: @nsyca

address cmt

review cmts

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

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

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

Added fix for album, removed ifdef

From: @xiefangqi
Reviewed-by: @pandoublefeng,@jonyguo
Signed-off-by: @jonyguo

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 !8194 from nsyca/opt3

Merge pull request !8235 from h.farahat/consumer_changes

Merge pull request !8188 from nsyca/opt2

staging II

clean up

further clean up

fix merge conflict with 8139

fix complie err

Merge pull request !8139 from h.farahat/ir_namespace

Merge pull request !8151 from JesseKLee/engine_cmake

Merge pull request !8140 from JesseKLee/engine_cmake

add validation check

address review cmts

Merge pull request !8096 from h.farahat/datasetNode

Merge pull request !8053 from ZiruiWu/revert_some_changes_in_7866