Add end-to-end HuggingFace Example

[kurbanrita]

Add functionality to run HuggingFace models on text data.

• Add validate function to the interface that runs validation without fitting
• Add TextModule for LLMs
• Add HuggingFace wrapper
• Add configuration for a simple validation task
• Add tests

[ioangatop]

Great work! this is some first review mostly about styling

[ioangatop]

We can keep it simple

return {
    "year": sample.get("YEAR", ""),
    "labels": sample.get("LABELS", ""),
    ...
}

or more complicated

return {
    key.lower().removesuffix("_pred"): sample.get(key, "")
    for key in ("YEAR", "LABELS", ...)
}

IMO simple is enough and more readable :)

[kurbanrita]

I tested it and if a key exists in the sample but the value is None, then sample.get(key, "") will still return None, which is what I try to avoid. Maybe I'll use "year": sample.get("YEAR") or "",? what do you think?