ULTIMA8: Enable cheater room teleport

[bliznik]

This is for ScummVM v. 2.7.0, with the time stamp of Feb 14, 2023.

In the original Ultima 8, if you go to a door in the catacombs, open it, and then jump towards the door, you would be teleported into a room with a lot of items in it, like good armor and weapons and potions and explosive items.

This teleport appears to have been disabled in the latest version of ScummVM. I'm unsure why.

This isn't a defect or a bug, just a feature request that I hope would be easy to implement.

I attach here a savegame in front of the door where the cheater room teleport is supposed to be located.