Add geocode_classification metadata response for intl-street-api (#59)

Author: JacobMcKenzieSmarty

src/sdk/InternationalStreetApi/Metadata.cs

@@ -19,6 +19,9 @@ public class Metadata
 		[DataMember(Name = "geocode_precision")]
 		public string GeocodePrecision { get; set; }
 
+		[DataMember(Name = "geocode_classification")]
+		public string GeocodeClassification { get; set; }
+
 		[DataMember(Name = "max_geocode_precision")]
 		public string MaxGeocodePrecision { get; set; }
 

src/tests/InternationalStreet/CandidateTest.cs

@@ -32,7 +32,7 @@ public void TestAllFieldsFilledCorrectly()
 			                               "\"post_box_number\":\"51\",\"additional_content\":\"112\",\"delivery_installation\":\"113\"," +
                 						   "\"delivery_installation_type\":\"114\",\"delivery_installation_qualifier_name\":\"115\",\"route\":\"116\"," +
                							   "\"route_number\":\"117\",\"route_type\":\"118\"},\"metadata\":{\"latitude\":52.0,\"longitude\":53.0," +
-			                               "\"geocode_precision\":\"54\",\"max_geocode_precision\":\"55\",\"address_format\":\"56\",\"occupant_use\":\"56.1\"}," +
+			                               "\"geocode_precision\":\"54\",\"geocode_classification\":\"multiple-point-average\",\"max_geocode_precision\":\"55\",\"address_format\":\"56\",\"occupant_use\":\"56.1\"}," +
 			                               "\"analysis\":{\"verification_status\":\"57\",\"address_precision\":\"58\",\"max_address_precision\":\"59\"," +
 										   "\"changes\":{\"organization\":\"60\",\"address1\":\"61\",\"address2\":\"62\",\"address3\":\"63\"," +
 			                               "\"address4\":\"64\",\"address5\":\"65\",\"address6\":\"66\",\"address7\":\"67\",\"address8\":\"68\"," +
@@ -145,6 +145,7 @@ public void TestAllFieldsFilledCorrectly()
 			Assert.AreEqual(52, metadata.Latitude, 0.001);
 			Assert.AreEqual(53, metadata.Longitude, 0.001);
 			Assert.AreEqual("54", metadata.GeocodePrecision);
+			Assert.AreEqual("multiple-point-average", metadata.GeocodeClassification);
 			Assert.AreEqual("55", metadata.MaxGeocodePrecision);
 			Assert.AreEqual("56", metadata.AddressFormat);
 			Assert.AreEqual("56.1", metadata.OccupantUse);