feat: increase speed on living streets such that it matches the speed used by vehicle profiles

The original "walking speed" of 6 km/h was unrealistically low for a road bike.

Author: aoles

ors-engine/src/main/java/org/heigit/ors/routing/graphhopper/extensions/flagencoders/bike/RoadBikeFlagEncoder.java

@@ -117,6 +117,7 @@ public RoadBikeFlagEncoder(int speedBits, double speedFactor, int maxTurnCosts,
         setSurfaceSpeed("wood", PUSHING_SECTION_SPEED / 2);
 
         setHighwaySpeed(KEY_CYCLEWAY, 18);
+        setHighwaySpeed("living_street", 10);
         setHighwaySpeed("path", 8);
         setHighwaySpeed("footway", 6);
         setHighwaySpeed("pedestrian", 6);