add suburb node

Author: sdrll

src/lib.rs

@@ -58,7 +58,7 @@ pub fn get_zones_and_stats(
     let mut zones = Vec::with_capacity(1000);
 
     for obj in pbf.values() {
-        if !is_admin(obj) {
+        if !is_admin(obj) && !obj.tags().get("place").map_or(false, |v| v == "suburb") {
             continue;
         }
         if let OsmObj::Relation(ref relation) = *obj {
@@ -70,6 +70,13 @@ pub fn get_zones_and_stats(
                 }
             };
         }
+        if let OsmObj::Node(ref node) = *obj {
+            let next_index = ZoneIndex { index: zones.len() };
+            if let Some(zone) = Zone::from_osm_node(node, next_index) {
+                // Ignore zone without boundary polygon for the moment
+                zones.push(zone);
+            };
+        }
     }
 
     Ok((zones, stats))