Tag Alias: studio_ego -> yamamoto_kazue

Aliasing studio_ego -> yamamoto_kazue.

Reason: Pretty sure that Kazue was the only artist for studio ego.

(I'm still unclear on why we have studio/company tags at all)

I personally see them as tags that could be used when multiple characters from the same franchise are in the same image. Though in most instances those kinds of images come about because they already came together for a specific copyright anyway (like Smash Bros.). They would probably be redundant with the crossover tag anyway, though.

They could also be useful in the rare case that someone knows the company that made a copyright, but not the title of said copyright.

Personally I think studio tags are only good as copys for mascot characters.

Done