Unflatten compiler option?

[gkinsman]

Hi there! I have a very disconnected graph and am looking for a good way to use less horizontal space.

Graphviz has a CLI tool called unflatten that adds invisible edges and other adjustments, which could be pretty cool a a compiler option in DotNetGraph!

The code for unflatten is here and the configuration params are here.

I might have a bash and see how I go if it sounds like a good idea :).