Add Tree component

[zemirco]

It would be nice to have some kind of Tree component.

Here are some examples from other component libraries.

Palantir Blueprint
https://blueprintjs.com/docs/#core/components/tree

Ant Design
https://ant.design/components/tree

IBM Carbon
https://carbondesignsystem.com/components/tree-view/usage/#live-demo

Salesforce Lightning Design System
https://www.lightningdesignsystem.com/components/trees/

VMware Clarity Design System
https://clarity.design/documentation/tree-view

Elastic UI
https://elastic.github.io/eui/#/navigation/tree-view

Shoelace
https://shoelace.style/components/tree

Adobe Spectrum
https://opensource.adobe.com/spectrum-css/treeview.html

Goldman Sachs Design System
https://design.gs.com/components/tree

Thank you! That would be awesome.