Auth plugin should make it easier to use the same scope with different arguments on a single field

Some options for this:

* $all and $any could accept arrays
* Could add $some and $every that takes an array of values for a scop
* add some helper that gets spread into a scope object

Start by reviewing the auth plugin's current scope handling and how scopes are applied to a single field. Compare the proposed $all/$any arrays, new $some/$every helpers, and scope-spreading helper, then define the desired API and its behavior for repeated scopes with different arguments.

Written by the indexing model from the issue text.