ONOS-3749: Show Flow ID and group ID in the flow table as hex values.

Change-Id: If98e0d76876ada2fa1c8d01a1b89230d1919f6c5
diff --git a/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java b/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
index c7d539b..c78d32f 100644
--- a/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
+++ b/web/gui/src/main/java/org/onosproject/ui/impl/GroupViewMessageHandler.java
@@ -29,6 +29,7 @@
 import org.onosproject.ui.table.TableModel;
 import org.onosproject.ui.table.TableRequestHandler;
 import org.onosproject.ui.table.cell.EnumFormatter;
+import org.onosproject.ui.table.cell.HexFormatter;
 
 import java.util.Collection;
 import java.util.List;
@@ -75,6 +76,7 @@
         @Override
         protected TableModel createTableModel() {
             TableModel tm = super.createTableModel();
+            tm.setFormatter(ID, HexFormatter.INSTANCE);
             tm.setFormatter(TYPE, EnumFormatter.INSTANCE);
             tm.setFormatter(BUCKETS, new BucketFormatter());
             return tm;