SAK-23305 Add config option to set all resources as hidden when using Import from Site > Re-use Content feature in Site Info
patch is based on a local customization used in the Stanford production instance



git-svn-id: https://source.sakaiproject.org/svn/site-manage/trunk@121194 66ffb92e-73f9-0310-93c1-f5514f145a0a