Pikachu's Cap forms and Cosplay forms had overlapping orders because i
forgot about Cosplay Pikachu when i set the form_order for the cap
forms.
??? Arceus had form_order=3 so it would go after all the other forms,
which had form_order=2. These were assigned distinct form_orders 2
through 17 at some point during a recent dump, but ??? Arceus was
missed.
Fixes#282