Goal: Allow in-cluster bookmarking of VMs - or simply "Named Snapshots" in order to quickly reinstantiate similar ones later on.

Why "Named Snapshots": With Golden Images we have the ability to deliver a golden boot volume to a cluster, but today, it's only one volume.
With Snapshots, we permit to do all configuratoins in a VM - IT or fully API - onr or many disks, and it is cluster scoped. Aka it provides many more degrees of freedom than golden images.

This is the third (in-cluster customization) aspect of Templates which we rebuild in an API, see https://docs.google.com/presentation/d/1uxjBnZXkPx4wgGPBP1aa3UZCCc28T-lCD0rW5stf53M/edit#slide=id.g14976d37afc_0_77