some more achievements

I'm actually almost done(ish)!
I just have to remember to put all of these little commits together into
a large total commit that has a more cohesive commit message.
FINALLY. ACHIEVEMENTS ARE DONE.

I've added all the hooks for achievements. Hopefully clockfort actually
did his achievement database thing he said he was working on.
Also, note on finishing them, I actually didn't get to do the crash one,
because I haven't looked at how nethack4 handles segfaults, but it is
different then nethack (atleast, I couldn't find the same function
off-hand.