data: Implementing FinalBlockId in Data packet's MetaInfo section

Change-Id: I4768aa0d7465f498b220910269db5e2aa69bbe51
diff --git a/src/data.hpp b/src/data.hpp
index d6aba80..f1b64a3 100644
--- a/src/data.hpp
+++ b/src/data.hpp
@@ -92,6 +92,12 @@
   
   inline void 
   setFreshnessPeriod(Milliseconds freshnessPeriod);
+
+  inline const name::Component&
+  getFinalBlockId() const;
+
+  inline void
+  setFinalBlockId(const name::Component& finalBlockId);
   
   /**
    * @brief Get content Block
@@ -222,6 +228,19 @@
   metaInfo_.setFreshnessPeriod(freshnessPeriod);
 }
 
+inline const name::Component&
+Data::getFinalBlockId() const
+{
+  return metaInfo_.getFinalBlockId();
+}
+
+inline void
+Data::setFinalBlockId(const name::Component& finalBlockId)
+{
+  onChanged();
+  metaInfo_.setFinalBlockId(finalBlockId);
+}
+
 inline const Block& 
 Data::getContent() const
 {