Allow filter options to be passed to Storage::AWS::File#each

This is a very small pull request that allows for specifying the same options you can pass to `File#all` to `File#each` as well. 

I personally needed it to be able to paginate through more than 1,000 objects on S3 with a prefix option set. 

If you think you may be interested in accepting this I can look into adding test coverage for it.