Add point-wise values.
	
	* tests/core/pw_value.cc: New.
	* tests/core/Makefile.am: Update.
	* oln/core/gen/pw_value.hh: New.
	* oln/Makefile.am: Update.



git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@676 4aad255d-cdde-0310-9447-f3009e2ae8c0