System resource monitoring

[OliverEvans96]

It would be great to have some resource monitoring like dask:

Talk: https://www.youtube.com/watch?v=FTJwDeXkggU
API: http://dask.pydata.org/en/latest/diagnostics.html
JupyterLab Extension: https://github.com/dask/dask-labextension (not working with jlab master)

I'm wondering if we can get away with using dask to execute workflows, since that would likely gain us these tools.

[OliverEvans96]

It seems like the monitoring graphs from dask are modular and fit well into our widget paradigm.