Config Option to Render Spyglass While Zooming

[Superkat32]

A config option to render the spyglass model while zooming. The option would actually be an enum, similar if not identical to the overlay option(always render model, render model while spyglass is in inventory, render model while holding spyglass, never render model).

I might be able to PR this feature eventually, maybe after I'm done with Modtoberfest(I can't do it for Modtoberfest because some of the code I'd be using would've been made before the event started, which I believe is against the rules). I have a WIP prototype going, but after reviewing some of Zoomify's code, I'd probably want to try to replace some of the mixins with actual methods. I'm also okay if you don't want to wait on me considering that I've been slow in the past.

For reference, this is the "spyglass model" I'm talking about.

[LessThanBenji]

Would love to see this implemented! Spyglass Improvements was my favorite zoom mod pre-1.20 because of this feature, helps with realism and role-playing 😄