enhancement: attach image/video file from disk as workfile review

[sidmehraajm]

Add ExtractWorkfileReviewFromFile publish plugin that exposes a 'Review file' file picker on the Workfile instance. The selected image or video is attached to the workfile product as a 'review'-tagged representation and a thumbnail is generated from it, so a review can be published without rendering a camera/playblast. Leaving the field empty is a no-op.

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[BigRoy]

Admittedly, I think this has no reason of being inside Blender - it may very well apply nearly as much across most integrations (if not all) which makes me think whether there's any reason to not move something akin to this into AYON-core. It applies to a much wider use case - and it's not blender-specific?

What type of videos are you attaching? Where do they come from? Are they manually made from the scene-file? Because if so, isn't the end goal instead that we automate that generation?

Also, with that said - I feel this is also a fine addition to just a custom studio addon which makes me wonder whether there's actually a place for this out of the box in AYON. Seems rather specific to a preference of doing this as well?