Update autotest framework (#5520)

* update automated test framework

Signed-off-by: daquexian <daquexian566@gmail.com>

* rename func -> generator

Signed-off-by: daquexian <daquexian566@gmail.com>

* reformat

Signed-off-by: daquexian <daquexian566@gmail.com>

* update more powerful conv test

Signed-off-by: daquexian <daquexian566@gmail.com>

* new imperative autotest api

Signed-off-by: daquexian <daquexian566@gmail.com>

* update automated test framework

Signed-off-by: daquexian <daquexian566@gmail.com>

* add some tests and refine code

Signed-off-by: daquexian <daquexian566@gmail.com>

* update test_matmul.py

Signed-off-by: daquexian <daquexian566@gmail.com>

* fix test_matmul.py

Signed-off-by: daquexian <daquexian566@gmail.com>

* add atol and rtol, fix test_matmul.py

Signed-off-by: daquexian <daquexian566@gmail.com>

* auto format by CI

* reformat

Signed-off-by: daquexian <daquexian566@gmail.com>

* tricky export

* tricky export

* fix comments

* auto format by CI

* fix comments

* auto format by CI

* fix code

* dirtyfix

* fixname

* fix

* fix bug

* fix comments

Co-authored-by: oneflow-ci-bot <ci-bot@oneflow.org>
Co-authored-by: Xiaoyu Zhang <35585791+BBuf@users.noreply.github.com>
Co-authored-by: BBuf <1182563586@qq.com>
Co-authored-by: oneflow-ci-bot <69100618+oneflow-ci-bot@users.noreply.github.com>
Co-authored-by: tsai <jackalcooper@gmail.com>