fix: Breed line-of-sight

[Rushwind13]

• items and monsters will not draw if not in sight of player
• wizard mode makes all items, all monsters visible, and lights all rooms when entered
• scores of 0 are not recorded
• monsters will only breed to nearby spawn points they can see (no spawning past closed doors)
• rest and run modes are interrupted when an item, monster, or interesting dungeon feature is within sight