Feature: Multiple Directories Per User

[hacdias]

Tracking issue for adding functionality to add multiple directories per user. This could be done through a non-breaking change update, by introducing a new directories variable. For example:

modify: false
directories:
    - /path/to/a
    - /path/to/b
rules:
    # Rules are now relative to the root, which contains all the exposed directories.
    - path: /a/some/file
      allow: false
    - path: /b/documents/
      modify: true