Adding Regional School (3x3 fixed)

Yay, finally get this off my que.  The school desks and lockers are filled with useful items and the library has a large assortment of low level skill books.  The only thing you have to worry about is feeling bad about whacking a few dozen zombie kiddies.  The building itself is fairly rare and there is a 1/7 chance for a school bus in the lot.  Its dangerous enough that low level players will likely be swarmed if they even tried to loot it.