[Feature] Ability to select multiple studios

[Dark-kn1ght]

Is your feature request related to a problem? Please describe. I'm using Stash for both IRL and R34 videos and images, and sometimes there are multiple artists on a video, unfortunately I can't add them all because the Studio field is limited to just 1 entry.

Describe the solution you'd like If possible, being able to add more that just 1 Studio would be good enough, even though it's not an "Artist" field, it's not that different.

Describe alternatives you've considered This definitely will be harder, but what about letting users create custom fields so Stash can be more easily adapted to other type of content? Just an idea I had.

Thanks for your time, this project is awesome.

[YurikaL]

Would be useful for JAV as well, since JAV movies often have two studio-related fields: Maker and Label, and currently the Label field isn't represented in Stash at all.

[strubdog]

I also think this would be a great idea. Some sites may list the same scene under multiple subsites. Even if this isn't implemented on stashdb, I could find great use for it in my local stash.

[echo6ix]

This would be relevant also for general full length movies, particularly older movies, which can have multiple "studios".