FEATURE 609 Save of volumic images. Anatomical orientation, translation (Offset) and rotation (TransformMatrix) taken into account. 
Still some works need to be done : 
* Action move frame should not work on frame coming from reorientation => Improve action ergonomy, mainly + define special frame for reorientation.
* Saving images in MHA has some weird behavior since we open, modify .mha, and this one contains raw image data => more test or decide to avoid .mha file format and prefer using .mhd (better).
* Dicom component does not (at the moment) read rotation information from tag => Improve it to read the data from the tag
* Saving image NOT in RAI, after user modification of the frame becomes WRONG => decide how to handle 3D transformation and frame reorientation. We should separate them.
* After saving (save as), input image data changes, its frame is reset => Need to reload correctly the image (ImageComponent::postSaving() method).

git-svn-id: svn+ssh://scm.forge.imag.fr/var/lib/gforge/chroot/scmrepos/svn/camitk/trunk/camitk@1963 ec899d31-69d1-42ba-9299-647d76f65fb3