Group thumbs by tag (only show each thumb once)
Group thumbnail sets under FIRST Tag in tagIds
Fix left indent/alignment within images/dataset
Don't show date-time stamps on Thumbnail Figure.
Check for 'Big' image before OME-TIFF creation. See #10761
Merge pull request #28 from will-moore/OME-TIFF_Big_Images_10761

OME-TIFF Big Images 10761
Merge pull request #27 from will-moore/thumbnail_fig_tags

Group thumbs by tag (only show each thumb once)