Example notebook exercising pairwise distance on GPU

[hammer]

@aktech has a blog post at https://quansight.com/post/dask-on-coiled that could have some utility here. We need @jeromekelleher to put it in context for biologists though!

[aktech]

Let me know, if you need any help from gpu perspective @jeromekelleher

[jeromekelleher]

Thanks @aktech, I'll be in touch!