SLING-2986 : Check if resource is hidden through properties (own or parent)

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1562604 13f79535-47bb-0310-9956-ffa450edef68
SLING-2986 : Check if resource is hidden through properties (own or parent)

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1562606 13f79535-47bb-0310-9956-ffa450edef68