ENH: add AIGFS and HRRR Models to Forecast

[MateusStano]

Pull request type

• Code changes (bugfix, features)
• Code maintenance (refactoring, formatting, tests)

Checklist

• Tests for the changes have been added (if needed)
• Docs have been reviewed and added / updated
• Lint (black rocketpy/ tests/) has passed locally
• All tests (pytest tests -m slow --runslow) have passed locally

Description

This PR adds support for two additional Forecast models that are easily available on THREDDS server

• AIGFS
• HRRR

Also included new models in the documentation

Breaking change

• Yes
• No

[codecov]

Codecov Report

❌ Patch coverage is 17.64706% with 28 lines in your changes missing coverage. Please review.
✅ Project coverage is 81.10%. Comparing base (9cf3dd4) to head (0d324a5).
⚠️ Report is 71 commits behind head on develop.

Files with missing lines	Patch %	Lines
rocketpy/environment/fetchers.py	10.00%	18 Missing ⚠️
rocketpy/environment/environment.py	0.00%	10 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #951      +/-   ##
===========================================
+ Coverage    80.27%   81.10%   +0.83%     
===========================================
  Files          104      113       +9     
  Lines        12769    14542    +1773     
===========================================
+ Hits         10250    11795    +1545     
- Misses        2519     2747     +228     

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[Gui-FernandesBR]

does it really have to be slow test?

[MateusStano]

All the tests that use set_atmospheric_model are marked as slow. I think now using THREDDS they are much faster, with NOMADS it used to take 1 minute per call, now its about 7~10 seconds. Given we have a bunch of them, the time adds up. So I´d still prefer to leave them marked as slow

[Gui-FernandesBR]

LGTM, great addition, congrats @MateusStano !!