~okeanos: Deconstructing a *ClientCloud implementation

So far, I can run a deployment on Okeanos, all SSH keys
(the keypair we specifically generate in the orchestrator
VM and the user-provided public key) are properly
propagated and all VMs of the deployment run. In the
Deployment run UI of the SlipstreamServer I can see the
IPs and VM IDs.

This is work in progress