ENH: Convert ExternalData .md5 tags to .cid (IPFS content IDs)#39

hjmjohnson wants to merge 2 commits intoInsightSoftwareConsortium:mainInsightSoftwareConsortium/ITKIOOpenSlide:mainfrom

hjmjohnson:cid-migrationhjmjohnson/ITKIOOpenSlide:cid-migrationCopy head branch name to clipboard