Make black and flake8 compatible (#202)

* Make black and flake8 compatible

* Disable only W503 and add link to black config docs

* Update setup.cfg comments

Co-authored-by: Serhii Korchynskyi <serhii.korchynskyi@etas.com>

---------

Co-authored-by: Serhii Korchynskyi <serhii.korchynskyi@etas.com>

setup.cfg

@@ -1,7 +1,9 @@
 [flake8]
 max-line-length = 88
 max-complexity = 18
-select = B,C,E,F,W,T4,B9,B950
+extend-ignore = E203,W503
+# More information about aligning flake8 and black configs can be found at https://github.com/psf/black/blob/06ccb88bf2bd35a4dc5d591bb296b5b299d07323/docs/guides/using_black_with_other_tools.md#configuration
+select = B,C,E,W,F,T4,B9,B950
 
 [mypy]
 python_version = 3.10