add Monster_Game

cgc-challenges/Monster_Game/.frama-c/GNUmakefile

...llenges/Monster_Game/.frama-c/Monster_Game.eva/alarms.csv

...lenges/Monster_Game/.frama-c/Monster_Game.eva/metrics.log

...lenges/Monster_Game/.frama-c/Monster_Game.eva/nonterm.log

...enges/Monster_Game/.frama-c/Monster_Game.eva/warnings.log

...enges/Monster_Game/.frama-c/Monster_Game.parse/framac.ast

...nges/Monster_Game/.frama-c/Monster_Game.parse/metrics.log

...ges/Monster_Game/.frama-c/Monster_Game.parse/warnings.log

cgc-challenges/Monster_Game/.frama-c/path.mk

cgc-challenges/Monster_Game/README.md

cgc-challenges/Monster_Game/lib/cgc_fs.h

cgc-challenges/Monster_Game/lib/cgc_monster_names.h

cgc-challenges/Monster_Game/lib/cgc_prng.h

cgc-challenges/Monster_Game/lib/cgc_stdint.h

cgc-challenges/Monster_Game/lib/cgc_stdio.h

cgc-challenges/Monster_Game/lib/ctype.c

cgc-challenges/Monster_Game/lib/fs.c

cgc-challenges/Monster_Game/lib/malloc.c

cgc-challenges/Monster_Game/lib/math.c

cgc-challenges/Monster_Game/lib/prng.c