Split Unfurl into two separate cli programs

[aszs]

To reduce complexity and clarify how to use unfurl we should split Unfurl into two separate cli programs:

The first (unfurl) Create and manage the runtime environments, clone and creates projects and ensembles, and executes processes in the runtime, in particular the second unfurl program, unfurl-deploy.

The second unfurl-deploy is the one that actually executes the workflows on the ensemble, e.g. deploy, undeploy, check and discover.