✨ CS-Flow model

[ashwinvaidya17]

Description

• Adds CS-Flow

• Use FrEIA from pip

• Add feature extraction using TorchFX

• Fixes Add CS-Flow Model #610

Changes

• Bug fix (non-breaking change which fixes an issue)
• Refactor (non-breaking change which refactors the code base)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Checklist

• My code follows the pre-commit style and check guidelines of this project.
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing tests pass locally with my changes

[djdameln]

Thanks a lot for diving into this algo and adding the implementation. I have a few comments concerning the readability, but overall the PR looks good!

[ashwinvaidya17]

I think I've addressed all the comments.

[djdameln]

Thanks, few comments left, mainly minor

[djdameln]

Sorry, forgot to approve this. But I'm happy with the changes, so let's get this merged