Signed-off-by: leonwanghui <leon.wanghui@huawei.com>

use unpack graph primitive instead

add testcases for all grad interface

remove debug log

format code

remove dumpfuncgraph

resolve clang-format

resolve reviews

resolve cpplint

fix review

Signed-off-by: Cathy Wong <cathy.wong@huawei.com>

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changes from yanpanhui 524009: added set_dataset_size and changed get_dataest_size according to ME requirements

CI fixes

fix pytest.mark for testcase

Previously function op_select_format and check_supported raise an exception directly on the tbe_process python side, but we don't deal with the exception, and raise an exeception on c++ side to frontend ME, that will cause some conflict when recycle resource on ME and tbe_process python interpreter.
This changes adding try...catch in function op_select_format and check_supported on the python side, and return the Exception string to c++ side, so that we can raise an exception to frontend ME and ME will deal with resouce clearning and exit.