ghost city prmaps addon

This is a PR multiplayer map, although it has a small coop16 that is not suitable for use in other mods. Unless you have all the buildings and vehicles. The map contains several Easter eggs. The building has Col3, and if someone is willing to do a huge city navigation, they can do it themselves. I am currently not planning to do coop32 coop64 This map uses a large number of new buildings