Added app, tests, lint to BUCK file for web/gui2

Change-Id: I94912cb18f31db26971b66c9d851fb57f022df54
diff --git a/modules.defs b/modules.defs
index 5f9354b..7df940e 100644
--- a/modules.defs
+++ b/modules.defs
@@ -252,6 +252,7 @@
     '//apps/imr:onos-apps-imr-oar',
     # nodemetrics application
     '//apps/nodemetrics:onos-apps-nodemetrics-oar',
+    '//web/gui2:onos-web-gui2-oar',
 ]
 
 PROTOCOL_APPS = [