New SDK support for volumes

[bwateratmsft]

The CLI now supports Docker volumes based on Azure storage, we should at least show them in the explorer.

[bwateratmsft]

The SDK does not yet have any support for volumes. It is only in the CLI at this point.

[bwateratmsft]

Blocked on docker/node-sdk#34.

This is now implemented, but the new ACI integration (0.1.18) in Docker Desktop is not yet available in Edge.

[bwateratmsft]

This feature has now been released in 1.8.0.