get_cloud_from_metadata_endpoint should have a verify=False parameter

[lmazuel]

From Azure/azure-sdk-for-python#1384 (comment) and @charliejllewellyn

In my scenario we are querying the metadata endpoint which calls a method (_populate_from_metadata_endpoint) in msrestazure/azure_cloud.py. This appears to be hardcoded to not pass verify=False to retrieve the endpoints. Editing this to pass this verify=False gets Ansible running.

This endpoint does not required authentication, so it's a standalone call and requests parameters should be available (or at least verify).

@derekbekoe FYI, impact the CLI as well (see initial issue link)