Final bugg fix.

Final bugg fix.
TestPapyrus  - reads a Papyrus file (gdcm::Header compliant),
             - gets the pixels of all the images, using low level iterators
				 - writes an multiframes Dicom image.
(Just to show it's *possible* to do that)
Uses SQItems accessors (we could use it as a 'Test' program, to improve test
coverage ...)