[NeMo-UX] Adding recipes

[marcromeyn]

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Collection: [Note which collection this PR will affect]

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Additional Information

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[akoumpa]

Can we rename the directory models to recipes?

Otherwise it's confusing why there's a mistral.py under both collections/llm/gpt/model and collections/llm/models.
I don't have any strong preference as long as one of the two directories changes name.

[ashors1]

Can we rename the directory models to recipes?

Otherwise it's confusing why there's a mistral.py under both collections/llm/gpt/model and collections/llm/models. I don't have any strong preference as long as one of the two directories changes name.

Done