Restrict espers by character.

The entirety of the hack takes up 1030 bytes starting at C3/F091 and ending at C3/F497. According to that patch list, it would completely overwrite Lenophis' RNG patch, but there's enough free space after it to fit mine, and it's a simple matter to move it.

As for a video, I put up some screenshots in the first post that show pretty much everything a video could. I suppose I could still make a video, but it's really not all that visually impressive.