This adds a new and optional animation for Characters called `PoseDoor`. When a character uses this animation, they stop at the entrance of the castle door to strike a pose like in All-Stars.
This PR changes the End Final Castle to use the Special visuals when the level is in the SMBS campaign.
This is primarily for the Level Editor / Custom Levels and isn't really necessary for the main campaigns. Hence the added check to see if the Level Editor is used.