Zero-shot extraction

[jhoetter]

Is your feature request related to a problem? Please describe. Currently, refinery only supports zero-shot classification.

Describe the solution you'd like Embed zero-shot models for extraction tasks from HuggingFace

Describe alternatives you've considered Zero-shot could also be implemented w/o HuggingFace, i.e. only using the embedded documents/tokens and calculating the nearest label item. Would arguably be faster, but likely worse in performance.

Additional context -