Extract File IO Functions

Excellent job on 3.6!!!

I have a request / idea.

It would be beneficial if we could extract the usage of System.IO.File related functions into a service layer wrapper.

Doing so would give plugin developers the ability to write custom io providers separate from logic.

PictureService is a prime example, right now you cannot separate where you want to store the files without writing a custom plugin that handles both the logic and the storage. creating a service wrapper would allow for two different plugins one for storage and one to handle the logic in processing pictures.

A.M. What do you think?

Hi,

Thanks a lot for suggestion. Sure. Please fine this work item here. Anyway it should be done when implementing full Azure support.

Done. Please see this commit for more details