clang format updates

self-review cleanups

cpplint fix

review updates

ci fixes

Merge pull request !869 from JesseKLee/random_data_op

Merge pull request !830 from Jamie/operator_print

fix some ci failures

more ci fixes

more ci fails

yet another ci fail

more ci stuff

still ci

more ci

more ci

more ci

Merge pull request !793 from yanghaitao/yht_err_msg_num_rows_zero

Merge pull request !711 from ZiruiWu/mindspore_master_only

Merge pull request !736 from yanghaitao/yht_tftextfile_black_line

fix ut

Merge pull request !406 from Peilin/first-row-crc-check

Merge pull request !404 from JunhanHu/python_sampler_for_cpp_dataset

addressed code review comments. added check in python layer to exclude directories and to raise an error if a pattern does not match any file

fixed clang format

fixed cppcheck

fixed cppcheck (used std::accumulate and std::copy_if). regenerated tfrecord file to contain correct header, it was a dummy header before

fixed cppcheck: added const reference for string parameter for lambdas, fixed clang format: whitespace adjustments

more clang whitespace fixes...

changed print to logger.info

Merge pull request !207 from ZiruiWu/batch_info_overflow

fix clang

pybind fix

Merge pull request !168 from Alexey_Shevlyakov/remove_mindspore_make_unique

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

CI fixes

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