Add keys to tw runs dump output to complete metadata for a workflow

[ejseqera]

Is it possible to add the following keys in the workflow.json output generated by tw runs dump? This would provide a complete set of metadata for a given run/workflow and has been requested by users intending to incorporate this metadata into sources downstream of the platform (i.e. databases, dashboards).

• pipelineId (unique identifier for pipelines on the Launchpad, obtained when running tw pipelines list)
• workspaceId
• userEmail (we include userName currently)
• userId