Merge pull request !1378 from JesseKLee/cond_var_debug

Merge pull request !1365 from h.farahat/text_namespace

Merge pull request !1308 from h.farahat/string_tensor2

Merge pull request !1215 from Xiaoda/change-succive-edges-order-and-add-checking

Merge pull request !1249 from heleiwang/hlw_gnn_data

Merge pull request !1358 from zhoufeng/link-child-graph-2

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

add support for MindRecord and TFRecord
----
optimize tensorshape

optimize tensorshape and FlatIndex

TFRecord and MindRecord support for string tensor

Modify mem layout
Add new constructor
Add method Allocate

Change some GetMutableBuffer usages to AllocateBuffer

Merge pull request !1328 from huanghui/LambNextMvWithDecayRuleConds-fusion-pass

Merge pull request !1281 from Peilin/splitOp

implementation 99% complete

everything and tested except for repeatable shuffling

tested most basic/typical split usecases

cleanup

some more cleanup

fix CI

more ci fix

more ci fixes

more ci fix

more ci fix

more ci fix

added more tests, fixed some bugs

some more clean up and test cases

added shard/shuffle before split warning/error

addressed code review comments and ci

fixed ci

Merge pull request !1296 from leopz/fix_primitive

Merge pull request !1266 from huanghui/LambNextMvWithDecayRuleConds-fusion-pass

Merge pull request !1269 from wenchunjiang/fix_task_sink_bug

Merge pull request !1189 from leopz/master

Merge pull request !1231 from zhoufeng/label-assign

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

Merge pull request !1209 from liubuyu/master

Merge pull request !1218 from jinyaohui/pylint1

-replace switch'case by indexing

- Add test case
- Add constructors
- Add getItem string

- Fix bugs
- Add more tests

- Tensor iterator
- asNumpy
- TextFileDataset

- Tensor(Numpy)

- Super > 2D
- Add more test cases for GeneratorDataset

- Change StartAddr to GetBuffer and GetMutableNuffer

- Raise an error if batch is used with strings

Clean-up work

Merge pull request !1120 from Kang/master

Merge pull request !1180 from YuJianfeng/master

Merge pull request !1118 from huanghui/batchnormgrad-to-bninfergrad-pass

Merge pull request !1157 from ms_yan/concat_dataset

Merge pull request !1126 from xiefangqi/voc_support_detection

Merge pull request !1098 from huanghui/add-batchnorm-bninfer-pass

change to use __add__ operation instead ds.concat