Equipment Check Event Command

New and unused event commands are a wonderful thing. I haven't done any hacking on FF6A, but I know that vanilla FF6 has an unused command (no pointer entry jumps to it) which apparently was to teach spell XX to character YY. And in Pandora's Box, we made a few new commands as well, although I can't remember all of them. I believe two of them that we added were status-related: one to check for status on a certain character (this is really needed to properly fix a few bugs) and one to set/clear status on a certain character.

Also, my fix for adding/removing HP (and MP) to characters also includes changes which check for the big 3 bad statuses (death, stone, zombie) which fixes at least 2 bugs in event code and simultaneously makes the event command have a larger range for hacks.