GuildWiki:Bot tasks/Image cats and attributions

This tasks puts large groups of images in a common category and affixes the proper license template. The task runs off a premade list of images for the category, the bot knows that all images on the list belong to the category (as well as could be determined), and it checks to see that the bot action does not result in adding a second license template to the page.

It is planned to run the bot on and whatever else can easily be automatically determined.
 * All uncategorized screenshots
 * Grey skill icons
 * Large skill icons
 * Fansite kit material in various categories
 * Screenshots linked in Infoboxes of various kinds (BeastInfo, ItemInfo, WeaponInfo, ...)
 * Armor gallery images

This effort supports the Image attribution project.