Description of problem: In existing implementation, it's possible to queue a single snapshot removal via 'VmOrTemplate.remove_snapshot_queue'. However, this is not possible to queue the removal of all snapshots, while it's probably going to take longer. It would then be great to have 'VmOrTemplate.remove_all_snapshots_queue' method.
https://github.com/ManageIQ/manageiq/pull/19150