Description:  If there are no suitable DC chargers on a route, permit the routing engine to use AC chargers to fill in a gap. Use Case: I live in an area with few DC chargers - I drive a 2012 Leaf and the nearest DC charger is 200 km away.  AC slow charging is necessary for some of us!  I've tested some routes which would be possible with an AC charge (and the charger appears on the map) but the routing engine doesn't use it, instead opting to fail to identify a route. This also applie