Fix 1474 - add fields to result object - correct calculation of number of clps.

[joernweissenborn]

Fixes #1474

• This adds additional_penalty to the result object and renames nr_clp back to number_of_clps.
• Correct degrees_of_freedom calculation.

[github-actions]

👈 Launch a binder notebook on branch joernweissenborn/pyglotaran/staging_1474

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[codecov]

Codecov Report

Attention: Patch coverage is 87.50000% with 4 lines in your changes missing coverage. Please review.

Project coverage is 85.2%. Comparing base (2d0fc21) to head (0884198).
Report is 14 commits behind head on staging.

Files with missing lines	Patch %	Lines
glotaran/optimization/optimization.py	50.0%	4 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##           staging   #1484   +/-   ##
=======================================
  Coverage     85.2%   85.2%           
=======================================
  Files           91      91           
  Lines         3735    3756   +21     
  Branches       726     734    +8     
=======================================
+ Hits          3184    3203   +19     
- Misses         438     440    +2     
  Partials       113     113           

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[jsnel]

Evaluated PR running study_fluorescence\fluorescence_global_and_target_analysis.ipynb.

On main:

Before this PR:

AFter this PR:

Conclusion: this does indeed resolve issue 1474.

[jsnel]

Reviewed and tested ok.

Closes #1474