Adding Azure Blob Storage support

[terricain]

Added tests, so it seems the way most of the azure sdk's test is by using vcrpy, which doesn't seem to work on < py36.

[coveralls]

Coverage decreased (-0.04%) to 82.696% when pulling 8979edf on terrycain:feature/azure-blob-storage into cc203e7 on stevearc:master.

[terricain]

Coverage is still unhappy about a -0.04% decrease, but I think the tests are fine

[stevearc]

Thanks for the PR! It's awesome to see people adding support for the tools they want to work with.

I have just a few requests for changes, but the overall structure and code looks good. Thanks so much for adding tests!

[terricain]

Cool fixed all that :)

[stevearc]

Awesome, thanks! Merged into the 1.0 branch and it'll go out in the next release

[terricain]

Cool, any rough timescale on that :)

[stevearc]

You can expect it by the end of the next weekend

[terricain]

Cool thanks