* sandbox/abraham/tests: New.
	* sandbox/abraham/tests/tikz.cc: New
	Basic test for tikz saving.
	* sandbox/abraham/tests/Makefile: New.
	* sandbox/abraham/io: New.
	* sandbox/abraham/io/tikz: New.
	* sandbox/abraham/io/tikz/save.hh: New
	(mln::io::tikz::save) Save an image to tikz.
	* sandbox/abraham/img: New.
	* sandbox/abraham/img/test.pgm: New.
	* sandbox/abraham/img/lena.pgm: New.
	* sandbox/abraham/img/lena.ppm: New.


git-svn-id: https://svn.lrde.epita.fr/svn/oln/trunk@1902 4aad255d-cdde-0310-9447-f3009e2ae8c0