Log experiment type and size when a run model is instatiated

[ManInFez]

Storing what experiment is used for both cli and gui

Pre review checklist

• Added appropriate release note label
• PR title captures the intent of the changes, and is fitting for release notes.
• Commit history is consistent and clean, in line with the contribution guidelines.

Adding labels helps the maintainers when writing release notes. This is the list of release note labels.

[codecov-commenter]

Codecov Report

Merging #3967 (99d0232) into main (1955596) will decrease coverage by 0.02%.
The diff coverage is 100.00%.

❗ Current head 99d0232 differs from pull request most recent head 11357f0. Consider uploading reports for the commit 11357f0 to get more accurate results

@@            Coverage Diff             @@
##             main    #3967      +/-   ##
==========================================
- Coverage   58.04%   58.01%   -0.03%     
==========================================
  Files         544      544              
  Lines       41034    41037       +3     
  Branches     3772     3772              
==========================================
- Hits        23819    23809      -10     
- Misses      16232    16243      +11     
- Partials      983      985       +2     

Impacted Files	Coverage Δ
src/ert/shared/cli/model_factory.py	96.61% <100.00%> (+0.18%)	⬆️
src/ert/gui/ertwidgets/validationsupport.py	79.45% <0.00%> (-19.18%)	⬇️
src/clib/lib/enkf/block_fs_driver.cpp	76.00% <0.00%> (-0.67%)	⬇️
src/clib/lib/res_util/block_fs.cpp	67.62% <0.00%> (-0.41%)	⬇️
src/ert/job_runner/job.py	72.78% <0.00%> (+2.04%)	⬆️

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[sondreso]

LGTM!

[ManInFez]

Test this please!