Change project src folder layout to use subfolder 'ale'

[maichmueller]

Fixes #532

[pseudo-rnd-thoughts]

@maichmueller I think the issue is related to NumPy 2.0, if you limit the numpy<2.0 in pyproject.toml this will probably fix

[maichmueller]

Hi @pseudo-rnd-thoughts ,

Thanks for the hint! But this small numpy change now seems to cause the… vcpkg step to fail? I don’t quite understand the CI setup in how the steps interoperate; the changes in commits often don’t appear to me to correlate with the errors in the CI steps.

[pseudo-rnd-thoughts]

@maichmueller There were several issues with the CI that took a while to fix.
Could you merge with main and see if vcpkg is fix

[maichmueller]

@pseudo-rnd-thoughts ,

thanks for those fixes! It seems the underlying CI issues have been resolved and all tests run successfully now. I am happy to bring this draft to full PR status then if you agree.

[pseudo-rnd-thoughts]

@maichmueller Thanks for sorting this, I'm not confident enough to confirm implementation
@JesseFarebro Could you look at this? I believe you should have the c++ expertise, if not please say

[pseudo-rnd-thoughts]

I think I understand now, looks good to me

Thanks again for the PR @maichmueller