[ONOS-4799],[ONOS-4351] Augment inter file linker and Generated Code refactored.

Change-Id: Id1f3ac9c90a632373f51cc75d499c3110216be17
diff --git a/utils/yangutils/plugin/src/test/resources/manager/submodule.yang b/utils/yangutils/plugin/src/test/resources/manager/submodule.yang
new file mode 100644
index 0000000..961147c
--- /dev/null
+++ b/utils/yangutils/plugin/src/test/resources/manager/submodule.yang
@@ -0,0 +1,15 @@
+submodule test6 {
+      
+     belongs-to "test5" {
+         prefix "test";
+    }    
+
+    revision "2016-07-04" {
+             description "Initial revision.";
+    }
+    grouping abc {
+        leaf leaf1 {
+           type int32;
+        }
+    }
+}