Feature request: Expose access rights at each file/folder node

[dschreij]

Currently, the access permissions are only listed at the project level. This makes it difficult to determine the access rights of individual files and folders (or nodes) inside a project. To do so, you need to check the parents of each file/folder, until you get to the project node that contains this information. Would it be possible to add this permission information to each child node of a project?

This is a repost of CenterForOpenScience/waterbutler#197

[Johnetordoff]

Discussed here: CenterForOpenScience/waterbutler#188 (comment)