adds ATM to POI layer (#1375)

This PR adds ATM to POI layer.
If ATM isn't provided with a name tag we'll try to use operator or network instead.

layers/poi/update_poi_point.sql

@@ -15,6 +15,18 @@ BEGIN
     WHERE funicular = 'yes'
       AND subclass = 'station';
 
+    -- ATM without name 
+    -- use either operator or network
+    -- (using name for ATM is discouraged, see osm wiki)
+    UPDATE osm_poi_point
+    SET (name, tags) = (
+        COALESCE(tags -> 'operator', tags -> 'network'),
+        tags || hstore('name', COALESCE(tags -> 'operator', tags -> 'network'))
+    )
+    WHERE subclass = 'atm'
+      AND name = ''
+      AND COALESCE(tags -> 'operator', tags -> 'network') IS NOT NULL;
+
     UPDATE osm_poi_point
     SET tags = update_tags(tags, geometry)
     WHERE COALESCE(tags->'name:latin', tags->'name:nonlatin', tags->'name_int') IS NULL