Add availability zones to azure_rm_virtualmachine_info module

[ChandlerSwift]

SUMMARY

Adds availability zone info to the azure_rm_virtualmachine_info module
fixes #522

This is, in a way, an extension of #243.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

azure_rm_virtualmachine_info

ADDITIONAL INFORMATION

With this PR, output looks like:

TASK [test : debug] **************************************************************************************************************
task path: /ansible/roles/test/tasks/main.yml:27
 ok: [...] => {
     "vm_info": {
         "changed": false,
         "failed": false,
         "vms": [
             {
                 "admin_username": "...",
                 "boot_diagnostics": {
                     "console_screenshot_uri": "...",
                     "enabled": true,
                     "serial_console_log_uri": "...",
                     "storage_uri": "..."
                 },
                 "data_disks": [
                     {
                         "caching": "ReadWrite",
                         "disk_size_gb": 128,
                         "lun": 0,
                         "managed_disk_type": "Premium_LRS"
                     }
                 ],
                 "id": "...",
                 "image": {
                     "id": "..."
                 },
                 "location": "...",
                 "name": "...",
                 "network_interface_names": [
                     "..."
                 ],
                 "os_disk_caching": "ReadWrite",
                 "os_type": "Linux",
                 "power_state": "running",
                 "resource_group": "...",
                 "state": "present",
                 "tags": {
                   ...
                 },
-                "vm_size": "..."
+                "vm_size": "...",
+                "zones": [
+                    "2"
+                ]
             }
         ]
     }
 }

[Xiuxi-Sun]

@ChandlerSwift Thanks for your contribution! I will review and push for merged!

[Fred-sun]

@ChandlerSwift Thanks for your contribution! Would you help to add test case for the new change? Thank you very much!

[Fred-sun]

Please add sample for this return value!