Add block diagram GUI similar to simulink to editors

[jgoppert]

There have been several requests for a GUI interface. The MSL is already annotated for block diagram rendering, so this would be a good way to test. It should be optional and still promote a text first friendly development for use with AI. However, block diagrams can be useful for humans to understand a system at a glance.

[yeus]

working on this in

https://github.com/Xyntopia/taskyon/

which includes a patch for rumoca to support this!