[ONOS-3906],[ONOS-3910] Implementation of YANG module and leaf/leaf-list translator.

Change-Id: If1a8a991ffafa14b51211f97c435176ee1bf856f
diff --git a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MaxElementsListenerTest.java b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MaxElementsListenerTest.java
index f03ab75..11a973b 100644
--- a/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MaxElementsListenerTest.java
+++ b/utils/yangutils/src/test/java/org/onosproject/yangutils/parser/impl/listeners/MaxElementsListenerTest.java
@@ -62,8 +62,8 @@
         YangModule yangNode = (YangModule) node;
         assertThat(yangNode.getName(), is("Test"));
 
-        ListIterator<YangLeafList> leafListIterator = yangNode.getListOfLeafList().listIterator();
-        YangLeafList leafListInfo = leafListIterator.next();
+        ListIterator<YangLeafList<?>> leafListIterator = yangNode.getListOfLeafList().listIterator();
+        YangLeafList<?> leafListInfo = leafListIterator.next();
 
         assertThat(leafListInfo.getLeafName(), is("invalid-interval"));
         assertThat(leafListInfo.getMaxElelements(), is(3));
@@ -99,9 +99,9 @@
     @Test
     public void processMaxElementsInvalidStatement() throws IOException, ParserException {
         thrown.expect(ParserException.class);
-        thrown.expectMessage("extraneous input 'max-element' expecting {'config', 'description', 'if-feature'," +
-                " 'max-elements', 'min-elements', 'must', 'ordered-by', 'reference', 'status', 'type', 'units', " +
-                "'when', '}'}");
+        thrown.expectMessage("extraneous input 'max-element' expecting {'config', 'description', 'if-feature',"
+                + " 'max-elements', 'min-elements', 'must', 'ordered-by', 'reference', 'status', 'type', 'units', "
+                + "'when', '}'}");
         YangNode node = manager.getDataModel("src/test/resources/MaxElementsInvalidStatement.yang");
     }
 
@@ -145,8 +145,8 @@
         YangModule yangNode = (YangModule) node;
         assertThat(yangNode.getName(), is("Test"));
 
-        ListIterator<YangLeafList> leafListIterator = yangNode.getListOfLeafList().listIterator();
-        YangLeafList leafListInfo = leafListIterator.next();
+        ListIterator<YangLeafList<?>> leafListIterator = yangNode.getListOfLeafList().listIterator();
+        YangLeafList<?> leafListInfo = leafListIterator.next();
 
         assertThat(leafListInfo.getLeafName(), is("invalid-interval"));
         assertThat(leafListInfo.getMaxElelements(), is(2147483647));