Implement tiled multiplayer city simulation and scaling stages

src/osm/overpass.ts

@@ -65,6 +65,9 @@ export function buildQuery(b: BBox): string {
   node["tourism"]${bb};
   node["healthcare"]${bb};
   node["highway"="street_lamp"]${bb};
+  node["highway"="bus_stop"]${bb};
+  node["highway"="crossing"]${bb};
+  node["public_transport"="platform"]${bb};
 );
 out geom;`;
 }