Improvements to Storage Extension

[rgrp]

Storage is now working but there are

• Integrate with Resources (e.g. create a resource for each file upload and give option to associate with a package)
  • Should we introduce rule that files *not* associated with a Resource are periodically deleted?
• Allow setting of a file name/path before upload
• Allow for file overwriting/deleting etc (how should this work -- do we want to allow this sort of thing)
• Integrate local file upload stuff in api/auth/*

Different Backend Issues

Local file store is rather different from 'remote' storage in various ways:

• For remote you don't want to use many buckets as there are bucket limits while for local you want to. Should we there have a single path that users provide which we then partition differently for different backends.