[Python API] Improve configuration files (#10960)

* [Python API] Improve configuration files

* fix config files

* update setup.cfd + change quotes

* move all codestyle checks to py_checks job

* update requirements_test.txt

* fix  codestyle according to flake-docstring

* fix

* fix mypy

* apply comments

samples/python/setup.cfg

@@ -1,7 +1,11 @@
 [flake8]
+# ignore:
+# D100 - Missing docstring in public module
+# D101 - Missing docstring in public class
+# D103 - Missing docstring in public function
 filename = *.py
 max-line-length = 160
-ignore = E203
+ignore = E203,D100,D101,D103
 max-parameters-amount = 8
 show_source = True
 docstring-convention = google