Introduce new API in route service to return only resolved routes

Change-Id: I17b4c4b84c99bd813a6406624a6e6e43458a15ea
diff --git a/apps/route-service/api/src/test/java/org/onosproject/routeservice/RouteServiceAdapter.java b/apps/route-service/api/src/test/java/org/onosproject/routeservice/RouteServiceAdapter.java
index 5d41450..f4c189b 100644
--- a/apps/route-service/api/src/test/java/org/onosproject/routeservice/RouteServiceAdapter.java
+++ b/apps/route-service/api/src/test/java/org/onosproject/routeservice/RouteServiceAdapter.java
@@ -43,6 +43,11 @@
     }
 
     @Override
+    public Collection<ResolvedRoute> getResolvedRoutes(RouteTableId id) {
+        return null;
+    }
+
+    @Override
     public Collection<RouteTableId> getRouteTables() {
         return null;
     }