[GFW] Set HP Values

[KirbyComment]

For both scoring and survival there are freeze tricks used that transition the freeze from one pattern to the next to do massive damage to the next pattern quickly.

This is currently inconvenient to practice but being able to set the HP to a very low amount would be a helpful feature. It would also be helpful to allow players to set the HP of sidefairies on the final boss in order to have a pattern start with the sidefairies HP already depleted.