merge white_washed_female and whitewashed_female

BUR #130 has been rejected.

create alias whitewashed_female -> white_washed_female

combines all posts under redundant tags

This bulk update request is pending automatic rejection in 5 days.

This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #130 (forum #12107) has been rejected by @DanbooruBot.