add source column to codelist values (#6)

codelists/contact-role.csv

@@ -1,5 +1,5 @@
-Name,Description
-licensor,The organization that is licensing the dataset under the license specified in the Collection's license field
-producer,"The producer of the data is the provider that initially captured and processed the source data, e.g. ESA for Sentinel-2 data"
-processor,A processor is any provider who processed data to a derived product
-host,"The host is the actual provider offering the data on their storage. There should be no more than one host, specified as last element of the list"
+Name,Description,Source
+licensor,The organization that is licensing the dataset under the license specified in the Collection's license field,https://github.com/radiantearth/stac-spec/blob/master/collection-spec/collection-spec.md#provider-object
+producer,"The producer of the data is the provider that initially captured and processed the source data, e.g. ESA for Sentinel-2 data",https://github.com/radiantearth/stac-spec/blob/master/collection-spec/collection-spec.md#provider-object
+processor,A processor is any provider who processed data to a derived product,https://github.com/radiantearth/stac-spec/blob/master/collection-spec/collection-spec.md#provider-object
+host,"The host is the actual provider offering the data on their storage. There should be no more than one host, specified as last element of the list",https://github.com/radiantearth/stac-spec/blob/master/collection-spec/collection-spec.md#provider-object

codelists/global-service-type.csv

@@ -1,5 +1,5 @@
-Name,Description
-global-broker,Global Broker
-global-cache,Global Cache
-global-discovery-catalogue,Global Discovery Catalogue
-global-monitoring,Global Monitoring
+Name,Description,Source
+global-broker,Global Broker,
+global-cache,Global Cache,
+global-discovery-catalogue,Global Discovery Catalogue,
+global-monitoring,Global Monitoring,

codelists/link-type.csv

@@ -1,7 +1,7 @@
-Name,Description
-http://def.wmo.int/def/rel/wmdr/-/EnvironmentalMonitoringFacility,Environmental monitoring facility
-http://def.wmo.int/def/rel/wmdr/-/FacilitySet,Facility set
-http://def.wmo.int/def/rel/wnm/-/update,Resource update
-http://def.wmo.int/def/rel/wnm/-/deletion,Resource deletion
-items,Items/data granules (from OGC 17-069r4)
-data,Data (from OGC 17-069r4)
+Name,Description,Source
+stations,Environmental monitoring facility,
+station,Facility set,
+update,Resource update,
+deletion,Resource deletion,
+items,Items/data granules (from OGC 17-069r4),https://docs.ogc.org/is/17-069r4/17-069r4.html#_link_relations
+data,Data (from OGC 17-069r4),https://docs.ogc.org/is/17-069r4/17-069r4.html#_link_relations

codelists/resource-type.csv

@@ -1,4 +1,4 @@
-Name,Description
-dataset,Dataset
-service,Service
-process,Process
+Name,Description,Source
+dataset,Dataset,https://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode_dataset
+service,Service,https://www.isotc211.org/2005/resources/Codelist/gmxCodelists.xml#MD_ScopeCode_service
+process,Process,https://docs.ogc.org/is/18-062r2/18-062r2.html#toc35