Add managed disks list to dynamic inventory hostvars

[nbr23]

SUMMARY

Address #678 by adding managed disks list to dynamic inventory facts

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

• azure_rm (dynamic inventory)

ADDITIONAL INFORMATION

Add a new data_disks field in the inventory hostvars, listing the attached disks with their LUN, name, and azure ID.
This also adds the disk ID for the OS disk.

          data_disks:
          - id: /subscriptions/XXXXXX/resourceGroups/myRG-eastus2/providers/Microsoft.Compute/disks/nbr23vm-data1
            lun: 0
            name: nbr23vm-data1