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

Change-Id: If1a8a991ffafa14b51211f97c435176ee1bf856f
diff --git a/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java b/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
index 16735c2..073db3b 100644
--- a/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
+++ b/src/main/java/org/onosproject/yangutils/datamodel/YangAugment.java
@@ -76,8 +76,7 @@
 /**
  * Data model node to maintain information defined in YANG augment.
  */
-public class YangAugment extends YangNode
-        implements YangLeavesHolder, YangCommonInfo, Parsable {
+public class YangAugment extends YangNode implements YangLeavesHolder, YangCommonInfo, Parsable {
 
     /**
      * Augment target node.
@@ -92,14 +91,12 @@
     /**
      * List of leaves.
      */
-    @SuppressWarnings("rawtypes")
-    private List<YangLeaf> listOfLeaf;
+    private List<YangLeaf<?>> listOfLeaf;
 
     /**
      * List of leaf-lists.
      */
-    @SuppressWarnings("rawtypes")
-    private List<YangLeafList> listOfLeafList;
+    private List<YangLeafList<?>> listOfLeafList;
 
     /**
      * reference.
@@ -141,6 +138,7 @@
      *
      * @return the description.
      */
+    @Override
     public String getDescription() {
         return description;
     }
@@ -150,6 +148,7 @@
      *
      * @param description set the description.
      */
+    @Override
     public void setDescription(String description) {
         this.description = description;
     }
@@ -159,8 +158,8 @@
      *
      * @return the list of leaves.
      */
-    @SuppressWarnings("rawtypes")
-    public List<YangLeaf> getListOfLeaf() {
+    @Override
+    public List<YangLeaf<?>> getListOfLeaf() {
         return listOfLeaf;
     }
 
@@ -169,8 +168,7 @@
      *
      * @param leafsList the list of leaf to set.
      */
-    @SuppressWarnings("rawtypes")
-    private void setListOfLeaf(List<YangLeaf> leafsList) {
+    private void setListOfLeaf(List<YangLeaf<?>> leafsList) {
         listOfLeaf = leafsList;
     }
 
@@ -179,10 +177,10 @@
      *
      * @param leaf the leaf to be added.
      */
-    @SuppressWarnings("rawtypes")
+    @Override
     public void addLeaf(YangLeaf<?> leaf) {
         if (getListOfLeaf() == null) {
-            setListOfLeaf(new LinkedList<YangLeaf>());
+            setListOfLeaf(new LinkedList<YangLeaf<?>>());
         }
 
         getListOfLeaf().add(leaf);
@@ -193,8 +191,8 @@
      *
      * @return the list of leaf-list.
      */
-    @SuppressWarnings("rawtypes")
-    public List<YangLeafList> getListOfLeafList() {
+    @Override
+    public List<YangLeafList<?>> getListOfLeafList() {
         return listOfLeafList;
     }
 
@@ -203,8 +201,7 @@
      *
      * @param listOfLeafList the list of leaf-list to set.
      */
-    @SuppressWarnings("rawtypes")
-    private void setListOfLeafList(List<YangLeafList> listOfLeafList) {
+    private void setListOfLeafList(List<YangLeafList<?>> listOfLeafList) {
         this.listOfLeafList = listOfLeafList;
     }
 
@@ -213,10 +210,10 @@
      *
      * @param leafList the leaf-list to be added.
      */
-    @SuppressWarnings("rawtypes")
+    @Override
     public void addLeafList(YangLeafList<?> leafList) {
         if (getListOfLeafList() == null) {
-            setListOfLeafList(new LinkedList<YangLeafList>());
+            setListOfLeafList(new LinkedList<YangLeafList<?>>());
         }
 
         getListOfLeafList().add(leafList);
@@ -227,6 +224,7 @@
      *
      * @return the reference.
      */
+    @Override
     public String getReference() {
         return reference;
     }
@@ -236,6 +234,7 @@
      *
      * @param reference the reference to set.
      */
+    @Override
     public void setReference(String reference) {
         this.reference = reference;
     }
@@ -245,6 +244,7 @@
      *
      * @return the status.
      */
+    @Override
     public YangStatusType getStatus() {
         return status;
     }
@@ -254,6 +254,7 @@
      *
      * @param status the status to set.
      */
+    @Override
     public void setStatus(YangStatusType status) {
         this.status = status;
     }
@@ -263,6 +264,7 @@
      *
      * @return returns AUGMENT_DATA.
      */
+    @Override
     public ParsableDataType getParsableDataType() {
         return ParsableDataType.AUGMENT_DATA;
     }
@@ -272,6 +274,7 @@
      *
      * @throws DataModelException a violation of data model rules.
      */
+    @Override
     public void validateDataOnEntry() throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
     }
@@ -281,6 +284,7 @@
      *
      * @throws DataModelException a violation of data model rules.
      */
+    @Override
     public void validateDataOnExit() throws DataModelException {
         // TODO auto-generated method stub, to be implemented by parser
     }
@@ -324,6 +328,7 @@
     /* (non-Javadoc)
      * @see org.onosproject.yangutils.translator.CodeGenerator#generateJavaCodeEntry()
      */
+    @Override
     public void generateJavaCodeEntry() {
         // TODO Auto-generated method stub
 
@@ -332,6 +337,7 @@
     /* (non-Javadoc)
      * @see org.onosproject.yangutils.translator.CodeGenerator#generateJavaCodeExit()
      */
+    @Override
     public void generateJavaCodeExit() {
         // TODO Auto-generated method stub