Multiple bucket and folder support

[stevestencil]

I have modified this adapter so that I can add url params to the file name to dictate which bucket and folder a file should be stored in. For example image.png?bucket=foo&folder=bar would store a file called image.png in the bar folder of the foo bucket. This allows me for example to modify the file name in the beforeSaveFile hook so that I can have each users files separated into folders and/or buckets. If there is an interest in adding this functionality i'd be happy to submit a PR

[mtrezza]

Not sure what the scope of the suggested change is; so please feel free to open a PR to maybe get a better understanding.

[mtrezza]

I'm closing this since the scope and purpose of this feature has not been clarified, and there hasn't been any further activity.