Removed Api namespace in testcase, not linked for package size

removed extra tensor ops

Fix Center crop and pad

Added file error check, return emtpy if wrong

Added fix to Album

Add missing syntax

Added wrapper

Fix clang

Added cpp lint part 2

clang 3

clang 4

Fixed typos 1`

Roll back size optimization

Added clang fix 5

Lint fix 6

Added Cpp lint fix 7

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

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

From: @jtnisbet
Reviewed-by: @liucunwei
Signed-off-by: @liucunwei

From: @ezphlow
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: 
Signed-off-by:

Added execute tests for server

From: @jiangzhiwen8
Reviewed-by: @liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @jiangzhiwen8
Reviewed-by: @xulei2020,@liucunwei,@heleiwang
Signed-off-by: @liucunwei

From: @luoyang42
Reviewed-by: 
Signed-off-by:

From: @jianghui58
Reviewed-by: @zhanghaibo5,@zhang_xue_tong
Signed-off-by:

From: @jiangzhiwen8
Reviewed-by: @pandoublefeng,@liucunwei
Signed-off-by: @liucunwei

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

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: @jiangzhiwen8
Reviewed-by: @xulei2020
Signed-off-by:

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: