ClassicStand V2.5

Major map enhancements.

Added the neighborhood.map file containing all platforms, walls, zones, sound sources, and persons for the neighborhood map.
Replaced the hardcoded draw_map function with a data-driven load_map system. Maps are now loaded from external .map files stored in data/maps/, making it possible to create and edit maps without touching code.
Made it so person sounds pause when you step onto their tile and resume when you walk away.