Extend truck custom model (graphhopper#3117)

* Low priority private access

* Low priority delivery/destination access

* Check weight limit

Author: otbutz

core/src/main/resources/com/graphhopper/custom_models/truck.json

@@ -1,5 +1,5 @@
 // to use this custom model you need to set the following option in the config.yml
-// graph.encoded_values: road_access, car_access, hgv, max_width, max_height, car_average_speed
+// graph.encoded_values: road_access, car_access, hgv, max_width, max_height, car_average_speed, max_weight, max_weight_except
 // profiles:
 //    - name: truck
 //      turn_costs:
@@ -9,8 +9,11 @@
 {
   "distance_influence": 1,
   "priority": [
-    { "if": "car_access == false || road_access == PRIVATE || hgv == NO",  "multiply_by": "0" },
-    { "if": "max_width < 3 || max_height < 4", "multiply_by": "0" }
+    { "if": "hgv == NO",  "multiply_by": "0" },
+    { "if": "!car_access && road_access != PRIVATE && hgv != DELIVERY && hgv != DESTINATION",  "multiply_by": "0" },
+    { "if": "road_access == PRIVATE || hgv == DELIVERY || hgv == DESTINATION",  "multiply_by": "0.1" },
+    { "if": "max_width < 3 || max_height < 4", "multiply_by": "0" },
+    { "if": "max_weight < 18 && max_weight_except == MISSING", "multiply_by": "0" }
   ],
   "speed": [
     { "if": "true", "limit_to": "car_average_speed * 0.9" },