Adds new map-item subtypes.

Adds four new *road map* subtypes:

common *tourist guide* - details hotels, restaurants, and megastores
common *restaurant guide* - details restaurants and bars
rare *military operations map* - details evacuation centers and military facilities
rare *survivor's map* - details supply locations like gun stores and grocery stores

Modifies extant *road map* items to show civic facilities; subway entrances, banks, and regional schools rather than walmarts and pharmacies, still shows all other content.