Add MSI authentication

[dtretyakov]

By using this option it is possible to reuse security credentials from the virtual machine: https://docs.microsoft.com/en-us/azure/active-directory/msi-tutorial-linux-vm-access-storage

[dtretyakov]

We could use Instance metadata service for that: https://docs.microsoft.com/en-us/azure/active-directory/managed-service-identity/how-to-use-vm-token