added stamen stadia as a spatial map provider

ckan/docker-entrypoint.d/02_setup_spatial.sh

@@ -0,0 +1,12 @@
+#!/bin/bash
+
+if [[ $CKAN__PLUGINS == *"spatial_metadata"* ]]; then
+   echo "Configuring CKAN spatial ..."
+
+   ckan config-tool $CKAN_INI "ckanext.spatial.common_map.type=Stadia.StamenTerrain"
+   ckan config-tool $CKAN_INI "ckanext.spatial.common_map.max_zoom=18"
+   # forse è da aggiungere un qualche tipo di key per production
+
+else
+   echo "Not configuring spatial, plugin not enabled."
+fi