* olena/tests/core/fiter_point1d_b.cc,
	* olena/tests/core/fiter_point2d_b.cc: New test.
	* olena/tests/core/Makefile.am: Update.
	* olena/oln/core/1d/fast_iterator_1d_b.hh: 
	 New fast_iterator for image1d_b.
	
	* olena/oln/core/2d/fast_iterator_2d_b.hh: 
	New fast_iterator for image1d_b.
	
	* olena/oln/core/1d/fast_iterator_1d.hh,
	* olena/oln/core/2d/fast_iterator_2d.hh,
	* olena/oln/core/3d/fast_iterator_3d.hh: factorizing some codes 
	* olena/oln/core/1d/image1d_b.hh, 
	* olena/oln/core/2d/image2d_b.hh: add method to get the
	array associated with the image.
	
	* olena/oln/core/1d/image1d.hh,
	* olena/oln/core/2d/image2d.hh,
	* olena/oln/core/3d/image3d.hh: Change fiter type.
	* olena/oln/core/concept/fast_iterator.hh: factorizing some codes.
	* olena/oln/core/internal/fast_iterator_base.hh: New base class
	for fast iterator based on image with array.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@965 4aad255d-cdde-0310-9447-f3009e2ae8c0