Register/create a cluster

[tonyskapunk]

• Given a valid API Token and Pullsecrets are provided
• When Using a module, e.g. assitedinstaller.register_cluster
• Then Register the cluster and save the cluster_id from the response

References:

• https://docs.redhat.com/en/documentation/assisted_installer_for_openshift_container_platform/2024/html/installing_openshift_container_platform_with_the_assisted_installer/installing-with-api#registering-a-new-cluster_installing-with-api
• API: https://petstore.swagger.io/?url=https://raw.githubusercontent.com/openshift/assisted-service/master/swagger.yaml#/installer/v2RegisterCluster