[ONOS-5527,ONOS-5529] process sub tree filtering in generted code changes.

Change-Id: I2b5562ee57d887c25f4a6b55cd25006e288563c0
diff --git a/plugin/maven/src/test/resources/augmentTranslator/test.yang b/plugin/maven/src/test/resources/augmentTranslator/test.yang
index c112cef..20393a7 100644
--- a/plugin/maven/src/test/resources/augmentTranslator/test.yang
+++ b/plugin/maven/src/test/resources/augmentTranslator/test.yang
@@ -43,7 +43,21 @@
               }  
          }
      }
-                    
+
+     leaf leaf-a {
+       type int32;
+     }
+
+      leaf-list leaf-list-a {
+          type int32;
+      }
+
+      list list-a {
+         key "name";
+         leaf name {
+            type string;
+         }
+      }
 
     augment /cont3 {
         leaf leaf1 {