Add pico4 controllers support

[dmarcos]

To test:

• npm start
• Visit http://localhost:8080/test/laser-controls/
• Enter VR mode. The Pico controllers models should show up

@felixtrz If you have some bandwidth it would be really cool if you test this out. I don't have access to a Pico4 device. Thanks so much!

[felixtrz]

Hey @dmarcos , I tested it out on Pico 4, the controller models show up as expected, the material on the controller meshes looks unrealistically shiny, and the controllers are not animated (nothing happens when trigger is pressed or thumbstick is pushed, etc.) The placement of the controllers seems good.

screenrecording-20230502-234452_RwAzlP8E.mp4

[dmarcos]

Thanks so much! You rock. Correct model placement and button events working is already good progress.

Lack of buttons animation expected. Not implemented yet.

About materials. Just using the model from the webxr-input-profiles repo. Perhaps lighting of this particular scene interacting with the material

[dmarcos]

I opened a separate issue to track the button animation #5286