Renamed devicemanager, flowprogrammer, linkdiscovery and util packages

net.onrc.onos.ofcontroller.devicemanager.* => net.onrc.onos.core.devicemanager.*
net.onrc.onos.ofcontroller.flowprogrammer.* => net.onrc.onos.core.flowprogrammer.*
net.onrc.onos.ofcontroller.linkdiscovery.* => net.onrc.onos.core.linkdiscovery.*
net.onrc.onos.ofcontroller.util.* => net.onrc.onos.core.util.*

Change-Id: Iaa865af552e8fb3a589e73d006569ac79f5a0f08
diff --git a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
index 3533ebf..29a5169 100644
--- a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
+++ b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
@@ -24,6 +24,8 @@
 import net.onrc.onos.core.datagrid.IDatagridService;
 import net.onrc.onos.core.datagrid.IEventChannel;
 import net.onrc.onos.core.datagrid.IEventChannelListener;
+import net.onrc.onos.core.devicemanager.IOnosDeviceService;
+import net.onrc.onos.core.flowprogrammer.IFlowPusherService;
 import net.onrc.onos.core.intent.Intent;
 import net.onrc.onos.core.intent.IntentMap;
 import net.onrc.onos.core.intent.IntentOperation;
@@ -33,17 +35,15 @@
 import net.onrc.onos.core.intent.Intent.IntentState;
 import net.onrc.onos.core.intent.runtime.IPathCalcRuntimeService;
 import net.onrc.onos.core.intent.runtime.IntentStateList;
-import net.onrc.onos.ofcontroller.devicemanager.IOnosDeviceService;
-import net.onrc.onos.ofcontroller.flowprogrammer.IFlowPusherService;
+import net.onrc.onos.core.util.Dpid;
+import net.onrc.onos.core.util.FlowPath;
+import net.onrc.onos.core.util.Port;
+import net.onrc.onos.core.util.SwitchPort;
 import net.onrc.onos.ofcontroller.networkgraph.Device;
 import net.onrc.onos.ofcontroller.networkgraph.INetworkGraphService;
 import net.onrc.onos.ofcontroller.networkgraph.LinkEvent;
 import net.onrc.onos.ofcontroller.networkgraph.NetworkGraph;
 import net.onrc.onos.ofcontroller.networkgraph.Switch;
-import net.onrc.onos.ofcontroller.util.Dpid;
-import net.onrc.onos.ofcontroller.util.FlowPath;
-import net.onrc.onos.ofcontroller.util.Port;
-import net.onrc.onos.ofcontroller.util.SwitchPort;
 import net.onrc.onos.packet.Ethernet;
 import net.onrc.onos.registry.controller.IControllerRegistryService;