PAL black bars

Attempt to crop out the black bars added to PAL games, correcting the aspect ratio in the process (compare the Universal globe in Crash Bandicoot).

PAL PS1 ports were an absolute mess. The overscan cropping numbers also need correcting, but that's complicated by games attempting to compensate by default. Some offer a "move screen" option, but not all.

Guesstimated numbers. Most games still have a couple of pixels on one edge or another, but it's better than before.