devcluster: Add standalone server
devcluster: Add standalone server

This adds a single-node configuration of a dev cluster, for use when
testing things that require state restoration or multiple clients, but don't
necessarily require a 3+ node cluster.

burdandrei/nomad,hashicorp/nomad,hashicorp/nomad,burdandrei/nomad,dvusboy/nomad,burdandrei/nomad,dvusboy/nomad,hashicorp/nomad,hashicorp/nomad,dvusboy/nomad,burdandrei/nomad,burdandrei/nomad,dvusboy/nomad,burdandrei/nomad,burdandrei/nomad,dvusboy/nomad,dvusboy/nomad,hashicorp/nomad,dvusboy/nomad,hashicorp/nomad