deprecate visor

The bulk update request #12324 has been approved by @evazion.

deprecate visor

It’s a disambiguation page

We're going to have to come up with new tags for this, because there are several kinds of visors that don't have tags. I see at least:

• Full-face helmets with built-in eye visors, like the kind worn by Samus Aran, Master Chief, or Doomguy.
• Robots and mecha with helmet visors like the above, except they're extremely common in mecha and would flood the tag if they used the same tag as for people.
• Visor sunglasses (post #4635399).
• Various scifi eye visors that are somewhere in between glasses and head-mounted displays.

The bulk update request #12324 (forum #221404) has been approved by @evazion.