Redeploy base configuration

When a new router is deployed, it is loaded with the current version of configuration that contain the bare necessities. For various reasons, this template may change, and the resulting configuration follows from this. To update a router 'in the wild' where this change should be reflected, the workflow redeploy_base_config is used.

This workflow only takes a trouble ticket number as initial input, and deploys the base configuration, first as a dry run. After confirmation by an operator, the configuration is committed to the machine, and this completes the workflow.