Multiple file field path support for file entities

In our view we want to output file fields with multiple values as paths without using Image URL Formatter Module
This is a follow-up issue to File "Path" field needs to output a file path, not a URI (and perhaps add a File: URI field too)

@see We need a mutilple value support for this. But, this would be a seperate feature request.

because we still have duplicate content and the distinct query doesn't work.