YANG augment listener

Change-Id: I11ece665a7627d784f82247d5a33e3453632d0f9
diff --git a/utils/yangutils/src/test/resources/ValidAugmentStatement.yang b/utils/yangutils/src/test/resources/ValidAugmentStatement.yang
new file mode 100644
index 0000000..59ebe67
--- /dev/null
+++ b/utils/yangutils/src/test/resources/ValidAugmentStatement.yang
@@ -0,0 +1,15 @@
+module Test {
+    yang-version 1;
+    namespace http://example.com/schema/ds0;
+    prefix On;
+
+    import interface-module {
+        prefix "if";
+    }
+    augment "/if:interfaces/if:ifEntry" {
+        when "if:ifType='ds0'";
+        leaf ds0ChannelNumber {
+            type P:ChannelNumber;
+        }
+    }
+}