[ONOS-3892,3895,3882,3883,3896]Implementation of yang container, list, leaf, leaf-list parser

Change-Id: Id51839bc434044be8273382f80f15b12f0ec8709
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
index dcab33a..1fcf0b8 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/YangUtilsParserManager.java
@@ -36,6 +36,8 @@
  */
 public class YangUtilsParserManager implements YangUtilsParser {
 
+    public static final int SUB_STATEMENT_CARDINALITY = 1;
+
     @Override
     public YangNode getDataModel(String yangFile) throws IOException, ParserException {