Add support of Babylon.js GUI Editor and link in scripts

[workhardx2025-ship-it]

I want to thank you for this excellent Editor tool you're working on. It's getting more and more convenient.

What do you think about integrating this into the editor: https://gui.babylonjs.com/

or something similar for visual UI editing.

[julien-moreau]

Hey @workhardx2025-ship-it thanks a lot !!
This is already in progress but let's keep this issue opened to follow the progress.

For you what would be a priority: the possibility to build fullscreen GUI ? Or the possibility to use GUI in 3D environment (attach gui to a mesh in the scene) ?

[julien-moreau]

@workhardx2025-ship-it is your first usage of GUI to create fullscreen GUI ?

[julien-moreau]

Coming in 5.2.5, support of fullscreen UI