[WIP] UI prototype using rete-js

[cogk]

After looking at all the available libraries, I think rete-js is the right one, even if it has a lot of flaws.

• strong separation of concerns with many modules
• official Vue support
• generic and lightweight classes (node, edge, …)
• optional TypeScript support
• all the basics (pan, zoom, drag, select)

I'm currently working on a UI prototype that I will hopefully be able to turn into the end product.

[cogk]

The main problem is having an execution flow and a data flow simultaneously.