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[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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

:exclamation: 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

```diff @@ 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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[sonarcloud[bot]]

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