Support .vctr tiles

[xawill]

Is your feature request related to a problem? Please describe.

I am trying to add this tileset which is supposed to display labels of places. (Limited) Docs of the tileset available here. However, the library throws an error:

TilesRenderer : Failed to load tile at url "X/Y/Z.vctr"

It looks like .vctr tiles are not (yet) implemented. Is that correct, or is there another issue somewhere (with the tileset, maybe?).

Describe the solution you'd like

If this is really a lack of support, I would be willing to contribute to the implementation, with your guidance. My proposal would be to do something similar to google maps 3D which displays name of places in "2.5D", the text being anchor at a 3D location but always facing the user for readability. I think three.js' CSS3DRenderer would be a great use of that.

Describe alternatives you've considered

NA

Additional context

NA