Bulk Update Request: [BUR] Imply hand_in_* -> hand_under_clothing

Script

create implication hand_in_pants (1063) -> hand_under_clothing (334)
create implication hand_in_underwear (1663) -> hand_under_clothing (334)
create implication hand_in_shirt (47) -> hand_under_clothing (334)
create implication hand_in_swimwear (36) -> hand_under_clothing (334)

Original page: https://e621.net/bulk_update_requests/11325