Feature/regularll in encoder mtg2

[dsarmany]

Description

Contributor Declaration

By opening this pull request, I affirm the following:

• All authors agree to the Contributor License Agreement.
• The code follows the project's coding standards.
• I have performed self-review and added comments where needed.
• I have added or updated tests to verify that my changes are effective and functional.
• I have run all existing tests and confirmed they pass.

🌈🌦️📖🚧 Documentation 🚧📖🌦️🌈
https://sites.ecmwf.int/docs/dev-section/multio/pull-requests/PR-173

[codecov-commenter]

Codecov Report

❌ Patch coverage is 0% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 56.60%. Comparing base (65c09cd) to head (4f60b3b).
⚠️ Report is 5 commits behind head on develop.

Files with missing lines	Patch %	Lines
src/multio/datamod/types/Repres.cc	0.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #173   +/-   ##
========================================
  Coverage    56.60%   56.60%           
========================================
  Files          316      316           
  Lines        20490    20490           
  Branches      1569     1569           
========================================
  Hits         11598    11598           
  Misses        8892     8892           

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[pgeier]

The debug log message has been removed.

Grib1-to-grib2 files have been compared (bit-equal).

Just waiting for the ERA6-LWDA - but I don't expect differences here. The fdb-compare needs updates, that's why I am blocked.

Otherwise this can be merged.

The merge-base changed after approval.