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/encoding/binary-xml-decoder.h b/ndn-cpp/c/encoding/binary-xml-decoder.h
index 3e16497..38fd450 100644
--- a/ndn-cpp/c/encoding/binary-xml-decoder.h
+++ b/ndn-cpp/c/encoding/binary-xml-decoder.h
@@ -7,7 +7,7 @@
 #ifndef NDN_BINARYXMLDECODER_H
 #define NDN_BINARYXMLDECODER_H
 
-#include "../common.h"
+#include <ndn-cpp/c/common.h>
 #include "../errors.h"
 #include "../util/blob.h"