The card deck data is now compiled in. (And it always should have been,
even back when memory usage counted. It's small.)
This changes the save format slightly. (I am riding the previous
breakage an hour ago and not providing compat. There should be no
further breakage.)
Fold monop.ext (which was extern data decls) into monop.h and deck.h.
Fold monop.def (which had definitions for the extern data) into monop.c.
Fold brd.dat/mon.dat/prop.dat (which were array initializers for some of
the data) into monop.c.
Rearrange includes accordingly. No functional change.
of the card decks file, just write out the number of cards for each
deck. Also use "off_t" for offsets into the file (that are stored after
the number of cards) instead of "long".
/usr/share/games/cards.pck is now MI.