orca_hood -> animal_hood implication

The bulk update request #12780 has been approved by @nonamethanks.

create implication orca_hood -> animal_hood

It's a type of animal hood, also there is a bunch of orca_hood posts missing hood because people seem to assume it's implied

There's two posts that aren't the same two vtubers, but ok.

The bulk update request #12780 (forum #224082) has been approved by @nonamethanks.