Add tool to run black on the whole project

[oddstr13]

Makes it easy to re-create the PR running black on the entiere project.

With this, merge-conflicts caused by other PRs are a non-issue.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 21.50%. Comparing base (1899ecb) to head (d55379b).
Report is 6 commits behind head on master.

❗ Current head d55379b differs from pull request most recent head 3945a17

Please upload reports for the commit 3945a17 to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #868      +/-   ##
==========================================
- Coverage   21.51%   21.50%   -0.02%     
==========================================
  Files          63       63              
  Lines        8632     8637       +5     
  Branches     1589     1589              
==========================================
  Hits         1857     1857              
- Misses       6751     6756       +5     
  Partials       24       24              

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
No data about Coverage
1.9% Duplication on New Code

See analysis details on SonarCloud