Add new features (dynamic exog coefs), new forecasting procedure, inp…

[andreramosfdc]

…ut changes

[codecov]

Codecov Report

Attention: Patch coverage is 94.61538% with 21 lines in your changes missing coverage. Please review.

Project coverage is 92.19%. Comparing base (ba9c80d) to head (3c66a69).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
src/models/structural_model.jl	94.49%	20 Missing ⚠️
src/estimation_procedure.jl	92.30%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #59      +/-   ##
==========================================
- Coverage   95.30%   92.19%   -3.12%     
==========================================
  Files           9        9              
  Lines         618      692      +74     
==========================================
+ Hits          589      638      +49     
- Misses         29       54      +25     

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