Add forward model output functionality

[DanSava]

Resolves: equinor/ert#8757

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 70.21277% with 14 lines in your changes missing coverage. Please review.

Project coverage is 87.45%. Comparing base (974266c) to head (f4251d1).

Files with missing lines	Patch %	Lines
src/everest_models/everest_hooks.py	18.75%	13 Missing ⚠️
.../everest_models/jobs/fm_well_constraints/parser.py	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #76      +/-   ##
==========================================
- Coverage   87.79%   87.45%   -0.34%     
==========================================
  Files         133      133              
  Lines        3350     3373      +23     
==========================================
+ Hits         2941     2950       +9     
- Misses        409      423      +14     

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[StephanDeHoop]

Looks good to me, just two minor questions/comments