INT app gui2

This patch contains the files needed by the INT app to work with gui2.
More in detail I reuse/modifie the html and the css, already provided in
the inbandtelemetry folder. I add the file needed to utilize the gui2,
e.g,intapp-gui2-lib.module.ts.

Link to my dropbox for screenshots:
https://www.dropbox.com/sh/ie2l0flcm8igesk/AAAsP2RdMbNbnt6A88lmBczaa?dl=0

Change-Id: I710c09f3a04a139a4482bb7aae3b3b76b39e67e6
diff --git a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiMessageHandler.java b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiMessageHandler.java
index 226c428..34e8fb4 100644
--- a/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiMessageHandler.java
+++ b/apps/inbandtelemetry/app/src/main/java/org/onosproject/inbandtelemetry/app/ui/IntAppUiMessageHandler.java
@@ -37,6 +37,8 @@
 
 import java.util.Collection;
 
+import static org.onosproject.inbandtelemetry.api.IntIntent.IntHeaderType.HOP_BY_HOP;
+
 public class IntAppUiMessageHandler extends UiMessageHandler {
 
     private static final String INT_INTENT_ADD_REQUEST = "intIntentAddRequest";
@@ -54,7 +56,7 @@
                 new IntIntentAddRequestHandler(),
                 new IntIntentDelRequestHandler(),
                 new IntConfigAddRequestHandler()
-//                new intConfigDelRequestHandler()
+                //new intConfigDelRequestHandler()
         );
     }
 
@@ -181,7 +183,7 @@
             }
 
             builder.withSelector(sBuilder.build())
-                    .withHeaderType(IntIntent.IntHeaderType.HOP_BY_HOP)
+                    .withHeaderType(HOP_BY_HOP)
                     .withReportType(IntIntent.IntReportType.TRACKED_FLOW)
                     .withTelemetryMode(IntIntent.TelemetryMode.INBAND_TELEMETRY);
             intService.installIntIntent(builder.build());