title: How to check whether a GeoCoordinates is along a route?
body: <p>I have a route calculated by calling <code>RoutingEngine.calculateRoute()</code>. If I want to provide user with step by step instructions, I'd need a way to know whether the user is still en route, or if (s)he is off course (to calculate a new route). I have gone through the documentations but neither <code>com.here.sdk.mapviewlite.MapPolyline</code>, <code>com.here.sdk.routing.RouteLeg</code> or <code>com.here.sdk.routing.Route</code> have a method to check whether a given <code>GeoCoordinates</code> is <em>en route</em> or not. How do you achieve this?</p>