Add method to build full URL about xyzservices

[jorisvandenbossche]

This is basically this code from contextily to move over? -> https://github.com/geopandas/contextily/blob/799c70802892f0276ace74159df3ed24779cedbf/contextily/tile.py#L292-L298 (but a bit more expanded/documented)

[martinfleis]

Yeah. Or this one from geopandas_view https://github.com/martinfleis/geopandas-view/blob/eea1c898e98413381086ad1a2c8b6005dfd357e7/geopandas_view/view.py#L275-L282

[jorisvandenbossche]

Ah, but that's slightly different: that's building the full url except with x/y/z/s still to be filled in, while the one I linked accepts x/y/z and already fills those in as well.

Probably the s (subdomain) should already be filled in, since that can depend on the Provider information?

[martinfleis]

Probably the s (subdomain) should already be filled in, since that can depend on the Provider information?

That sounds right. I think we should be able to return both options, fully filled and and with xyz placeholders. Contextily can use the first version while folium the second.