Detangling incubator: virtual nets, tunnels, resource labels, oh my

- virtual networking moved to /apps/virtual; with CLI & REST API
- tunnels and labels moved to /apps/tunnel; with CLI & REST API; UI disabled for now
- protobuf/models moved to /core/protobuf/models
- defunct grpc/rpc registry stuff left under /graveyard
- compile dependencies on /incubator moved to respective modules for compilation
- run-time dependencies will need to be re-tested for dependent apps

- /graveyard will be removed in not-too-distant future

Change-Id: I0a0b995c635487edcf95a352f50dd162186b0b39
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2Jsonifier.java b/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2Jsonifier.java
index 4ec61ce..0ef6faf 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2Jsonifier.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/topo/Topo2Jsonifier.java
@@ -26,8 +26,7 @@
 import org.onosproject.cluster.ClusterService;
 import org.onosproject.cluster.ControllerNode;
 import org.onosproject.cluster.NodeId;
-import org.onosproject.incubator.net.PortStatisticsService;
-import org.onosproject.incubator.net.tunnel.TunnelService;
+import org.onosproject.net.statistic.PortStatisticsService;
 import org.onosproject.mastership.MastershipService;
 import org.onosproject.net.Annotated;
 import org.onosproject.net.Annotations;
@@ -128,7 +127,6 @@
     private StatisticService flowStatsService;
     private PortStatisticsService portStatsService;
     private TopologyService topologyService;
-    private TunnelService tunnelService;
     private UiExtensionService uiextService;
     private UiPreferencesService prefService;
 
@@ -160,7 +158,6 @@
         flowStatsService = directory.get(StatisticService.class);
         portStatsService = directory.get(PortStatisticsService.class);
         topologyService = directory.get(TopologyService.class);
-        tunnelService = directory.get(TunnelService.class);
         uiextService = directory.get(UiExtensionService.class);
         prefService = directory.get(UiPreferencesService.class);
     }