Upgrade to new Storage API's

[dviry]

Just an open issue for #30 - can we have AI finalize/bump that PR? Might be about time ;)

[niemyjski]

I have this all done locally, I just need to create a new pr for it. I've tested it against local emulator and azure itself.

[niemyjski]

I need some time to review this and will get it pushed real soon.

[niemyjski]

Would love any feedback, review or help testing for #51