Add flake8 and configuration to pre-commit review

Disclaimer:
Participation by NIST in the creation of the documentation of mentioned
software is not intended to imply a recommendation or endorsement by the
National Institute of Standards and Technology, nor is it intended to
imply that any specific software is necessarily the best available for
the purpose.

Signed-off-by: Alex Nelson <alexander.nelson@nist.gov>

Author: ajnelson-nist

.pre-commit-config.yaml

@@ -3,6 +3,10 @@ repos:
     rev: 22.3.0
     hooks:
       - id: black
+  - repo: https://github.com/pycqa/flake8
+    rev: 4.0.1
+    hooks:
+      - id: flake8
   - repo: https://github.com/pycqa/isort
     rev: 5.10.1
     hooks:

setup.cfg

@@ -38,6 +38,12 @@ console_scripts =
 case_utils = py.typed
 case_utils.ontology = *.ttl
 
+[flake8]
+# https://black.readthedocs.io/en/stable/guides/using_black_with_other_tools.html#flake8
+extend-ignore =
+  E203
+  E501
+
 [isort]
 # https://pycqa.github.io/isort/docs/configuration/black_compatibility.html
 profile = black