ndnSIM-v2: Initial implementation

- Name, name::Components, Interest, Data now use ndn-cxx
- Ptr is replaced with shared_ptr for ndn-cxx structures

Credits for the change also to Mickey Sweat, Wentao Shang, and Alex Afanasyev
diff --git a/model/ip-faces/ndn-udp-face.hpp b/model/ip-faces/ndn-udp-face.hpp
index f0c3293..ec97c99 100644
--- a/model/ip-faces/ndn-udp-face.hpp
+++ b/model/ip-faces/ndn-udp-face.hpp
@@ -21,6 +21,8 @@
 #ifndef NDN_UDP_FACE_H
 #define NDN_UDP_FACE_H
 
+#include "ns3/ndnSIM/model/ndn-common.hpp"
+
 #include "ns3/ndn-face.hpp"
 #include "ns3/socket.h"
 #include "ns3/ptr.h"