Feature/issue 222 improve changelog

[danielfromearth]

GitHub Issue: #222

Description

This modifies the structure and formatting of the changelog to follow the "Common Changelog" form.

PR Acceptance Checklist

• [n/a] Unit tests added/updated and passing.
• [n/a] Integration testing
• CHANGELOG.md updated
• [n/a] Documentation updated (if needed).

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📚 Documentation preview 📚: https://ncompare--244.org.readthedocs.build/en/244/

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.92%. Comparing base (3d19973) to head (3074c05).
Report is 15 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #244   +/-   ##
========================================
  Coverage    90.92%   90.92%           
========================================
  Files            5        5           
  Lines          463      463           
========================================
  Hits           421      421           
  Misses          42       42           

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