[ONOS-4350] Inter file linking implementation and inter-jar linking framework

Change-Id: I71a26ba3e0b9d17261e78a9313fe7f047195932e
diff --git a/utils/yangutils/src/test/resources/hierarchicalinterfiletype/ietf-network.yang b/utils/yangutils/src/test/resources/hierarchicalinterfiletype/ietf-network.yang
new file mode 100644
index 0000000..1f15b40
--- /dev/null
+++ b/utils/yangutils/src/test/resources/hierarchicalinterfiletype/ietf-network.yang
@@ -0,0 +1,16 @@
+   module ietf-network {
+     yang-version 1;
+     namespace "urn:ietf:params:xml:ns:yang:ietf-network";
+     prefix nd;
+
+     import ietf-inet-types {
+       prefix inet;
+     }
+
+    typedef node-id {
+       type inet:uri;
+       description
+         "Identifier for a node.";
+     }
+
+   }