GDP impacts integration

[adrivinca]

transferring code from the message_data PR#594 as I need to make it accessible to reviewers during the paper submission phase

The code is not yet in line with many standards, including the CLI and testing. I will work on it during the paper revision phase

How to review

TBD

PR checklist

• Continuous integration checks all ✅
• Add or expand tests; coverage checks both ✅
• Add, expand, or update documentation.
• Update doc/whatsnew.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.4%. Comparing base (4fd6446) to head (6593c38).
Report is 1 commits behind head on main.

Additional details and impacted files

@@          Coverage Diff          @@
##            main    #290   +/-   ##
=====================================
  Coverage   77.4%   77.4%           
=====================================
  Files        217     217           
  Lines      16851   16851           
=====================================
  Hits       13048   13048           
  Misses      3803    3803           

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