make: Global change: Move all public headers to include folder.  Change source to including public headers using #include <ndn-cpp/*>. Split some header files to minimize exposing C .h files.
diff --git a/ndn-cpp/c/forwarding-entry.h b/ndn-cpp/c/forwarding-entry.h
index 001fabc..48bbf5e 100644
--- a/ndn-cpp/c/forwarding-entry.h
+++ b/ndn-cpp/c/forwarding-entry.h
@@ -7,10 +7,10 @@
 #ifndef NDN_FORWARDING_ENTRY_H
 #define NDN_FORWARDING_ENTRY_H
 
-#include "common.h"
+#include <ndn-cpp/c/common.h>
+#include <ndn-cpp/c/forwarding-flags.h>
 #include "name.h"
 #include "publisher-public-key-digest.h"
-#include "forwarding-flags.h"
 
 #ifdef __cplusplus
 extern "C" {