nuke "has uncensored version"

BUR #14411 has been approved by @Hillside_Moose.

nuke has_uncensored_version

Only applies when the uncensored version is on Danbooru, so while it's kind of like paid reward available or making-of available, it has basically no value because post relationships/children exist.

The bulk update request #14411 (forum #230380) has been approved by @Hillside_Moose.