Automatic curation with metrics

[anoushkajain]

Solves #2479

This PR introduces model-based metric curation in the curation module.

The core functionality is implemented by the auto_label_units, which used scikit-learn pre-trained model in skops format to predict labels based on metrics (could be quality, template, or both).

The PR also adds the possibility to train your own model and to automatically access and apply pre-trained models available on hugging face.

[alejoe91]

@chrishalcrow @anoushkajain let's have a final push on this.

Just reviewing the generated docs, there are some failures:

1. In the Training a model for automated curation
   

2. At the end of Model Based Curation

• si.auto_label_units should be sc.auto_label_units
  
• Some rendering/formatting issue at the end:
  

[alejoe91]

Question for @anoushkajain and @chrishalcrow

Shouldn't this be "sua"/"mua" and this "noise"/"neuron"?

Everything has been addressed

[alejoe91]

@chrishalcrow fixed a couple of broken refs in the docs due to the mertics -> metrics correction in the file name.

Merging this! thank you all for working on this!

It's a great contribution for the community :)