Update bulk geocoder SQL function for GS7 support (serial) and 6.2 apikey support

server/extension/sql/21_bulk_geocode_street.sql

@@ -57,10 +57,10 @@ CREATE OR REPLACE FUNCTION cdb_dataservices_server._cdb_bulk_heremaps_geocode_st
 RETURNS SETOF cdb_dataservices_server.geocoding AS $$
   from cartodb_services import run_street_point_geocoder
   from cartodb_services.tools import LegacyServiceManager
-  from cartodb_services.here import HereMapsBulkGeocoder
+  from cartodb_services.here import get_bulk_geocoder
 
   service_manager = LegacyServiceManager('geocoder', username, orgname, GD)
-  geocoder = HereMapsBulkGeocoder(service_manager.config.heremaps_app_id, service_manager.config.heremaps_app_code, service_manager.logger, service_manager.config.heremaps_service_params)
+  geocoder = get_bulk_geocoder(app_id=service_manager.config.heremaps_app_id or None, app_code=service_manager.config.heremaps_app_code or None, logger=service_manager.logger, service_params=service_manager.config.heremaps_service_params, apikey=service_manager.config.apikey or None, use_apikey=service_manager.config.use_apikey or False)
   return run_street_point_geocoder(plpy, GD, geocoder, service_manager, username, orgname, searches)
 $$ LANGUAGE @@plpythonu@@ STABLE PARALLEL RESTRICTED;