Instead of using two separate functions with switch-cases for
wizard and clerical spell lists, define the spell lists
as arrays and use a single function to pick a spell
from the lists.
Adds levels to the monster spells, using the switch-case values,
with some minor fudging.
Move the monster spell definitions there, and use hackery
(similar to objects.h) to generate enum and data from
the header file.
I have not tested Windows, VMS, or Amiga builds.
