`cluster-create` should pull existing config if directory doesn't exist

[chelma]

Description

If the user calls cluster-create on an existing cluster but has deleted their local config directory or otherwise doesn't have it in the local directory tree, the code will create the config directory with default configuration rather than what is currently deployed.

Blocked By

• CLI Improvements for Configuration #87

Acceptance Criteria

• cluster-create should pull the currently deployed configuration and unpack it locally if called on an existing cluster and the user doesn't have a config directory for the cluster already