add missing save() call in thundercontext.convertImagesToSeries when loading multipage tif with shuffle True
add missing save() call in thundercontext.convertImagesToSeries when loading multipage tif with shuffle True

poolio/thunder,pearsonlab/thunder,jwittenbach/thunder,kunallillaney/thunder,oliverhuangchao/thunder,zhwa/thunder,pearsonlab/thunder,j-friedrich/thunder,oliverhuangchao/thunder,kcompher/thunder,kunallillaney/thunder,mikarubi/thunder,broxtronix/thunder,zhwa/thunder,kcompher/thunder,thunder-project/thunder,mikarubi/thunder,j-friedrich/thunder,poolio/thunder,broxtronix/thunder