Implement case-h e2e test

[pabloitu]

Case H needs to be incorporated in the test suite, because it's failing in some users' machines:

errors arisen:

 conda run pip install -e .../case_h/models/etas

   File "C:\Users\jb24583\AppData\Local\anaconda3\Lib\site-packages\git\repo\base.py", line 215, in __init__
    raise NoSuchPathError(epath)
git.exc.NoSuchPathError: C:\Users\jb24583\floatcsep\tutorials\case_h\models\etas

and when the external repository is downloaded externally:

PermissionError: [WinError 5] Access denied: 'models\etas\.git\objects\pack\pack-d604ad0ac8f8d7740195659df983039c48312ade.idx'