fix(config): Add sample data visibility env flag#778

1 commit merged intoKitware:mainKitware/VolView:mainfrom

arhowe00:759-Fix-seeing-Sample-Data-Browser-ever-if-configured-to-visiblity-falsearhowe00/VolView:759-Fix-seeing-Sample-Data-Browser-ever-if-configured-to-visiblity-falseCopy head branch name to clipboard