SLING-3085 : (cleanup and todo added, for:) support nt:resource/jcr:data patterns to be treated as a FILE (for serialization)

git-svn-id: https://svn.apache.org/repos/asf/sling/branches/tooling-ide-vlt@1524735 13f79535-47bb-0310-9956-ffa450edef68