image: transform engine + example

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9684 b7f1a160-662a-0410-a6d8-bea165342f16
transform position engine: read common transformation files

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9685 b7f1a160-662a-0410-a6d8-bea165342f16
comment failing code

git-svn-id: svn://scm.gforge.inria.fr/svnroot/sofa/trunk@9686 b7f1a160-662a-0410-a6d8-bea165342f16