Hammer CLI

Cloned from https://bugzilla.redhat.com/show_bug.cgi?id=1774104

Proposed title of this feature request
Associate a VM via API or Hammer to a compute resource

What is the nature and description of the request?
Currently it needs to be done for each VM manually via Webui or for all VMs:
Infrastructure -> compute resources -> choose compute_resource -> Virtual Machines -> find desired vm -> hover over "Associate VM" button in the top right corner

Why does the user need this?
- Does not want to associate all VMs only certain VMs and currently this is not possible outside of the Webui.
- For automation

How would the user like to achieve this? (List the functional
requirements here)
Hammer or API call for:
~_{~
https://foreman-server/compute_resources/compute_resource_id/vms/instance_uuid/associate.}
~~