Add Jupyter as a Meltano plugin
By adding Jupyter/Jupyterhub as a plugin for Meltano it will be easy to create notebooks for exploratory data analysis. As @DouweM mentioned in the discussion on this issue, this could tie in with issue #2546 by allowing relevant environment variables to be loaded as part of the invoke
command e.g. --with: meltano invoke --with=target-postgres jupyter notebook
It'd be good to get a list of Jupyter-specific configuration which might need to be set up as part of this command. The first one which springs to mind is the database connection setup, which should use the connection parameters specified as part of the loader config.