examples: Added ending 'Interesting' tags

A handful of examples were missing the terminating 'Interesting' tag.
Added these.

Signed-off-by: Noel Eck <noel.eck@intel.com>

examples/c++/ozw-aeotecsdg2.cxx

@@ -122,6 +122,7 @@ int main(int argc, char **argv)
   cout << "Exiting..." << endl;
 
   delete sensor;
+//! [Interesting]
 
   return 0;
 }