Supporting MVT-like vector tiles?

[deeplook]

I wonder if vector tiles are already on the to-do list? I see them only briefly mentioned in #49. I have some experience in this context which can be summarized like: it's kind of easy to get the data, but kind of difficult to render it with some proper style, partly because there are multiple standards.

[martinfleis]

There's certainly a willingness to add support for vector tiles. There was no discussion on how to do that. They will probably need more information than we store for XYZ.

We also need to find a way how to distinguish between the tile types since other libraries are now expecting that xyzservices.providers is a bunch of XYZ tiles. If we just added vector tiles with an attribute type="vector" it may cause some friction (you'd need to first filter xyz types...).

If you have any ideas I am all ears.