proposal: Add support for GoAT diagrams

[jmooring]

https://github.com/blampe/goat

It's fast and simple, whether using the CLI or the Go API.

Who's using it...

Asciidoctor
https://docs.asciidoctor.org/diagram-extension/latest/diagram_types/goat/

Hugo
https://gohugo.io/functions/diagrams/goat/

And presumably others.

[ggrossetie]

That's a good idea and I guess it should be possible to produce a single executable binary since it's written in Go.

[jmooring]

To build and install the CLI:

go install github.com/blampe/goat/cmd/goat@latest