Harmonise line endings across the scripts

[ekatef]

Currently, line endings differ from script to script. [Can be checked for example with git ls-files --eol]

That is an artifact which appeared after the merge and originated from different conventions used previously in the power and sectoral models. Pre-commit doesn't mind as far as line endings are same across each file.

Describe the feature you'd like to see

Would be great to harmonise it.

The most straight-forward approach is using .gitattributes, though finding some pre-commit hooks may be an interesting option.