Add creation timestamp to hostvars

[Rickmarges]

SUMMARY

This small change will add the timeCreated field from the API to the hostvars as creation_time.
The timeCreated field was introduced in version 2021-11-01 of the API.

ISSUE TYPE

• Feature Pull Request

COMPONENT NAME

inventory_azure

ADDITIONAL INFORMATION

https://learn.microsoft.com/en-us/dotnet/api/microsoft.azure.management.compute.models.virtualmachine.timecreated?view=azure-dotnet

Before:
$ ansible-inventory -i azure_dynamic_inventory_azure_rm.yml --host xxxxx | jq -c '.creation_time'
null

After:
$ ansible-inventory -i azure_dynamic_inventory_azure_rm.yml --host xxxxx | jq -c '.creation_time'
"2023-07-21T09:30:30.4710164+00:00"

[Klaas-]

should they maybe be normalized to a time format ansible uses? at the moment they are .net ticks (100ns), and maybe normalize them to iso8601_micro or something like that?