adding missed files

Fixed Errors

fixed bugs

fixed bugs

fixed bugs

fixed bugs

fixed bugs

Updated Python UT for Equalize op

Added cpp Equalize op

adding missed files

Fixed Errors

fixed bugs

fixed bugs

fixed bugs

fixed bugs

fixed bugs

Updated Python UT for Equalize op

Fixed comment style

update files

deleted files

added files

added image_utils.h

Fixed PyLint and CPPLint Errors

updated tensor_op.h

Merge pull request !3102 from nhussain/random_crop_fixes

Merge pull request !3169 from zhoufeng/xiu-ba-ge

Merge pull request !3115 from YuJianfeng/master

Merge pull request !3115 from YuJianfeng/master

Merge pull request !3153 from jinyaohui/all_reduce

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

Merge pull request !3156 from liuxiao93/ApplyMomentumD-ApplyMoment-GE

Merge pull request !3098 from wangnan39/sparse_optimizer_adapter_indexedslice

Merge pull request !3159 from wangqiuliang/replace-unsafe-function

Merge pull request !3135 from VectorSL/cast2

Merge pull request !3036 from jinyaohui/master

Merge pull request !3080 from vlne-v1/remove-redundant-phi

Merge pull request !3142 from caojian05/ms_master_dev

Merge pull request !3130 from vlne-v1/quant_op_depthwise

Merge pull request !3152 from yao_yf/reshape_ut_remove

Merge pull request !3148 from xiefangqi/cpp-api-windows-fix

Merge pull request !2989 from kisnwang/two-step-reduce-sparse-gradient

Merge pull request !2973 from luoyang/update

Merge pull request !3123 from hanjun996/master

Merge pull request !2876 from lirongzhen1/master

Merge pull request !3118 from jjfeing/master

Merge pull request !3140 from hexia/add_serving_option

Merge pull request !3097 from wangqiuliang/replace-unsafe-function

Removed log header

Merge pull request !3131 from zhangbuxue/change_shape_and_dtype_of_tensor_from_interface_to_attr

Merge pull request !3144 from nhussain/dataset_check

Merge pull request !3143 from TinaMengtingZhang/dataset-op-ut-mnist