Registration of definitions of OGC API standards

[ghobona]

Register the following:

• http://www.opengis.net/def/interface/ogcapi-maps
• http://www.opengis.net/def/interface/ogcapi-tiles
• http://www.opengis.net/def/interface/ogcapi-coverages
• http://www.opengis.net/def/interface/ogcapi-records
• http://www.opengis.net/def/interface/ogcapi-processes
• http://www.opengis.net/def/interface/ogcapi-environmental-data-retrieval

This URIs listed above follow the scheme described in the recently approved OGC API Naming Policy.

[ghobona]

Related to https://github.com/opengeospatial/NamingAuthority/issues/104