Plugins: add Leaflet.VectorTileLayer (#6330)
Plugins: add Leaflet.VectorTileLayer (#6330)

* Add plugin Leaflet.VectorTileLayer

* Fix HTML typo.

stefanocudini/Leaflet,CapeSepias/Leaflet,stefanocudini/Leaflet,Leaflet/Leaflet,stefanocudini/Leaflet,CapeSepias/Leaflet,CapeSepias/Leaflet,Leaflet/Leaflet,Leaflet/Leaflet