Improve the tool for checking nan and inf, and support to compute the max, min and mean of output tensor. (#47095)

* Improve the tool for checking nan and inf, and support to compute the max, min and mean of output tensor.

* Add a FLAGS to control whether abort when meets inf/nan and polish codes.

* Fix unittest.

* Change the computing of mean.

* update config

* re-blacken python code

* temporarily disable date and diff_py_file

* skip a format

* [CodeStyle] remove all future import

* revert test_error.py

* restore future import in example code

* use yapf to format all python file

* yapf exclude two unittests file for they rely on writing and reading file, and format will break them

* disable diff_py_file because too many diff files cause command following failed

* [Eager] Remove enable_legacy_dygraph setting

* Add more tests

* test=py3-eager

* test=py3-eager

* test=py3-eager

* enable new-executor on windows to test it

* add message

* fix ut

* add check nan of inf for dygraph

* add unittest for dygraph

* revert error change

* hot fix complle failed in gcc4.8

* fix failed unittest

* default open dygraph mode

* fix CI-Mac

* fix Mac-CI other unittest file

* fix CI-Py3

* fix test_communicator_geo and test_buffer_shared_memory_reuse_pass

* add enable_static to fix CI-Py3

* add enable_static to fix CI-coverage

* delete try except