Add basic consumer/producer examples

Change-Id: Iee77509efb1ed1444314072c7e03384df4f30d3c
diff --git a/wscript b/wscript
index f1bfbb3..6ee6d57 100644
--- a/wscript
+++ b/wscript
@@ -81,6 +81,7 @@
         bld.recurse('tests')
 
     bld.recurse('tools')
+    bld.recurse('examples')
 
     bld.install_files(
         dest = "%s/ndn-nac" % bld.env['INCLUDEDIR'],