Add Azure storage account upload support

[CodeGlitch0]

This change adds support for uploading scan reports to Azure storage accounts.

The primary downside to this change is that the Azure python packages have a dependency on cffi, which performs a compile when installed in alpine. Thus, it requires gcc and some other support libraries to complete installation. build-base is removed again after the pip installations complete.

[coderpatros]

Just my random 2 cents. This could be done without bringing in Azure dependencies.

With a shared access signature URL files can be saved in storage accounts with a plain old PUT request.

Additionally, it means you can created a SAS token with only access to write new blobs without needing the storage account key with full access.

It could also done in a generic way that supports POST or PUT to any URL.

[jusso-dev]

@coderpatros I don't personally think the fact the change utilises Azure dependencies matters? The existing AWS and GCP exports both have dependencies on their retrospective CLI tools.

[coderpatros]

@jusso-dev Just putting it out there that a bunch of extra bundled code, in the form of dependencies, could be dropped with a few lines of standard library code.

[SjamonDaal]

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