Some cleanups in the DICOM importer, and fix importing some sequences

Some DICOM sequences had each slice with an independent Series Instance
UID, thus confusing the importer which would import each slice as a
separate volume. Now we rely on Series Description, hopefully more
reliable. I also removed the Series Number from the volume signature.
Re-introduces medClutEditor: displayed but not functional
Small corrections
[CARTO] Transfers vtkMetaDataSet info to medAbstractData, corrects pb while importing Carto files
Adds new LUT (cardiac activation), CSV reader
Adds expiry date, hides diffusion, modif splashScreen size
Re add Cardiac activation LUT
[PaintTbx] Displays ROI volume, rm warnings
New version of medClutEditor (however needs medClutEditor plugin)
Displays histo on Mac with CTRL
[MANUALREGISTRATION] adds manualRegistrationToolBox to visualization workspace for testing
Small changes (spaces, comments)
AlgorithmPaintToolbox::updateView() error if no data - solved
rm commit medDistanceMap test