Provide command to activate VM

[dgolovin]

For those who is unfamiliar with RHEL activation process it might take time to figure out how to do that.
Would be good to have a command to do that. The command would need:

• activation key name: podman-desktop activation key can be reused or created using Subscription Manager Client API
• organization ID number: can be extracted from SSO token

The command would ask for RedHat SSO login if session does not exist/expired. Then use token to check for 'podman-desktop' activation key and create it if does not exist. Extract the org ID and run subscription activation command using ssh.