Experimental exposition of Chimney derivation engine as a library to use by other libraries

[MateuszKubuszok]

See https://github.com/scalalandio/chimney/discussions/573

[codecov[bot]]

Codecov Report

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

Project coverage is 86.54%. Comparing base (283120e) to head (b312b21). Report is 7 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #574 +/- ## ======================================= Coverage 86.54% 86.54% ======================================= Files 154 154 Lines 6007 6007 Branches 544 544 ======================================= Hits 5199 5199 Misses 808 808 ```

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