Make graphs linkable

[meshy]

It'd be nice if we could link to graphs showing a pre-filtered set of nodes.

I'm not sure what the best approach is for this.

Thoughts:

Should we represent the things to show in the graph, or the things we're excluding?

Is there a way to make the URL fairly readable without making it huge? Do either of these things matter? Which takes priority?

How do we load in the state when the page is rendered?

How will old links work as things are added/removed from a schema?

Updating the URL as the graph is manipulated seems to be better than having a "create link" button somewhere.