Use Azure Storage Blob for Vault snapshots

Just discovered the API for Vault's built-in Raft storage backend supports automated snapshots to the three major clouds. This drops support for the Azure storage CIFS share and replaces it with a blob container that I'll use for my Vault snapshots.

Add some outputs, remove some outputs

v0.3.0

add a couple of outputs that we need for Vault, and clean up unused o…

Treat storage account access key outputs as sensitive

v0.2.1

formatting

Useful outputs

v0.2.0

add outputs to this module that we're going to need

Initial release

v0.1.0

Initial release