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

Change-Id: If1a8a991ffafa14b51211f97c435176ee1bf856f
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/GeneratedFileType.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/GeneratedFileType.java
index 6a285c7..b623fb1 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/GeneratedFileType.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/translator/GeneratedFileType.java
@@ -1,16 +1,19 @@
-/*Copyright 2016.year Open Networking Laboratory
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-Licensed under the Apache License, Version 2.0 (the "License");
-you may not use this file except in compliance with the License.
-You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-Unless required by applicable law or agreed to in writing, software
-distributed under the License is distributed on an "AS IS" BASIS,
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-See the License for the specific language governing permissions and
-limitations under the License.*/
 package org.onosproject.yangutils.translator;
 
 /**
@@ -18,17 +21,27 @@
  */
 public enum GeneratedFileType {
     /**
-     * interface file.
+     * Interface file.
      */
     INTERFACE,
 
     /**
-     * class file.
+     * Builder class file.
      */
     BUILDER_CLASS,
 
     /**
+     * Builder interface file.
+     */
+    BUILDER_INTERFACE,
+
+    /**
+     * Impl class file.
+     */
+    IMPL,
+
+    /**
      * interface and class file.
      */
-    BOTH
+    ALL
 }