Feature - Improve spatial_uri URIs

[mjanez]

Steps

• [ ] Add generic continents https://github.com/mjanez/ckanext-scheming/blob/9dcb4e3bacc86efa1accd2853d4a520d740ebf6e/ckanext/scheming/ckan_geodcatap.yaml#L1338-L1857

• [ ] Add generic icon for non-spanish uris https://github.com/mjanez/ckanext-scheming/blob/a65379ad99c5e3e2e1ccb97e793f31215ed10741/ckanext/scheming/templates/scheming/display_snippets/spatial_uris.html#L17-L22

DCAT-AP Info

Property URI	Used for Class	Vocabulary URI	Vocabulary URI	Usage Note
dct:spatial	Catalogue, Dataset	EU Vocabularies Continents Named Authority List, EU Vocabularies Countries Named Authority List, EU Vocabularies Places Named Authority List, Geonames	http://publications.europa.eu/resource/authority/continent, http://publications.europa.eu/resource/authority/country, http://publications.europa.eu/resource/authority/place, http://sws.geonames.org/	The EU Vocabularies Name Authority Lists must be used for continents, countries and places that are in those lists; if a particular location is not in one of the mentioned Named Authority Lists, Geonames URIs must be used.

[mjanez]

Deprecated with https://github.com/OpenDataGIS/ckanext-facet_scheming

[mjanez]

Move to ckanext-scheming_dcat: https://github.com/mjanez/ckanext-scheming_dcat/issues/2