Add support for defining generative config at query-time (dynamic RAG)

[tsmith023]

• Adds support for defining generative config at the point of making a generate.search() query
• Extends API of methods in generate namespace allowing to provide image/imageProperties to the single prompt and grouped task aspects of the inference step
• Update returns of the query to deprecate old usage adding new features to the new .generative field

[orca-security-eu]

Orca Security Scan Summary

Status	Check	Issues by priority
Passed	Secrets	0   0   0   0	View in Orca

[weaviate-git-bot]

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