Merge pull request !1908 from Tinazhang/ut-normalize

Merge pull request !1928 from yoonlee666/deletereshape

Merge pull request !1964 from meixiaowei/master

Merge pull request !1937 from chujinjin/add_async_ops_excute_for_pynative

Merge pull request !1968 from jiangjinsheng/vm_FusedMulApplyMomentumExtern

Merge pull request !1971 from zhoufeng/enable-label-task

Merge pull request !1866 from heleiwang/gnn_june

Merge pull request !1961 from jiangjinsheng/issue_net

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

1. support get_all_edges, get_nodes_from_edge, get_sampled_neighbors, get_neg_sampled_neighbors and graph_info API
2. mod cora and citeseer conversion script

Merge pull request !1916 from lilei/add_proximal_ada_grad_optimizer

Merge pull request !1960 from liubuyu/master

Merge pull request !1957 from jiangjinsheng/issue_merge

Merge pull request !1933 from yoonlee666/edit-example

Merge pull request !1888 from YuJianfeng/adam

Merge pull request !1946 from lichen/remove_autoparallel_st

Merge pull request !1873 from yanghaoran/master

Merge pull request !1874 from h.farahat/string_tensor_updates

Merge pull request !1945 from vlne-v1/I1JXUP-resnet50-thor-assign-fail

- Support accepting Numpy of str as input
- Support batching strings
- Core logic of batch&pad is static
- Make Pad a utility function

Merge pull request !1947 from lianliguang/fix-bug-of-tbe-adapter

Merge pull request !1943 from zhaoting/master

Merge pull request !1940 from huanghui/single-batchnorm-fission-pass

Merge pull request !1936 from meixiaowei/master