EOmaps v2.1

... there are a lot of documentation updates!

🌳 new

• axes-specifications can now be passed to the initialization of a MapsGrid object
• there are new WebMap layers!
  • OSM default style (https://openstreetmap.org)
  • OSM german default style (https://openstreetmap.de)
  • OpenTopoMap (https://opentopomap.org)
  • OSM stamen toner (standard, lite, lines, labels, background, hybrid) (http://maps.stamen.com/#toner)
  • OSM stamen terrain (standard, lines, labels, background) (http://maps.stamen.com/#terrain)
  • OSM stamen watercolor (http://maps.stamen.com/#watercolor)

🐛changes

• adding WebMap services now works exclusively via m.add_wms independent of the service-type
  (m.add_wmts has been removed)
  • for services that allow multiple access possibilities (e.g. WMS, WMTS, etc.), the preferred way of accessing the WebMap service can be set on the initialization of the Maps-object via m = Maps(preferred_wms_service="wmts")

🔨 fixes

• positional arguments are now properly forwarded when callbacks are attached
  (e.g. m.cb.click.peek_layer(1) now works as expected)
• generalized access to xyz-tile-server
• kwargs passed to MapsGrid are now forwarded to GridSpec