SAK-23357 update to use correct SiteService API for checking permissions, and @CommonsLog for logging

git-svn-id: https://source.sakaiproject.org/svn/web/trunk@121698 66ffb92e-73f9-0310-93c1-f5514f145a0a
SAK-23412 add entity provider for web content tool

git-svn-id: https://source.sakaiproject.org/svn/web/trunk@121700 66ffb92e-73f9-0310-93c1-f5514f145a0a