[Tests] Add the new test dll from mono to xharness.

Following PR  xamarin#7147 we
have a new dll and therefore new tests to run.

Fixes: xamarin#7148

tools/bcl-test-importer/BCLTestImporter/BCLTestProjectGenerator.cs

@@ -106,6 +106,7 @@ public class BclTestProjectInfo {
 			// BCL tests group 2
 			new BclTestProjectInfo { Name = "SystemTests", assemblies = new[] {"monotouch_System_test.dll" }, Group = "BCL tests group 2" },
 			new BclTestProjectInfo { Name = "SystemDataTests", assemblies = new [] { "monotouch_System.Data_test.dll" }, Group = "BCL tests group 2" },
+			new BclTestProjectInfo { Name = "SystemDataDataSetExtensionsTests", assemblies = new [] { "monotouch_System.Data.DataSetExtensions_test.dll" }, Group = "BCL tests group 2" },
 			new BclTestProjectInfo { Name = "SystemNetHttpTests", assemblies = new [] { "monotouch_System.Net.Http_test.dll" }, Group = "BCL tests group 2" },
 			new BclTestProjectInfo { Name = "MonoDataTdsTests", assemblies = new [] { "monotouch_Mono.Data.Tds_test.dll" }, Group = "BCL tests group 2" },
 			new BclTestProjectInfo { Name = "SystemServiceModelTests", assemblies = new [] { "monotouch_System.ServiceModel_test.dll" }, Group = "BCL tests group 2" },
@@ -193,7 +194,8 @@ public class BclTestProjectInfo {
 			new BclTestProjectInfo { Name = "SystemTransactionsTests", assemblies = new [] { "xammac_net_4_5_System.Transactions_test.dll" }, Group = "Mac OS X BCL tests group 1" },
 			new BclTestProjectInfo { Name = "SystemWebServicesTests", assemblies = new [] { "xammac_net_4_5_System.Web.Services_test.dll" }, Group = "Mac OS X BCL tests group 1" },
 			new BclTestProjectInfo { Name = "SystemXmlLinqTests", assemblies = new [] { "xammac_net_4_5_System.Xml.Linq_test.dll" }, Group = "Mac OS X BCL tests group 1" },
-
+			new BclTestProjectInfo { Name = "SystemDataDataSetExtensionsTests", assemblies = new [] { "xammac_net_4_5_System.Data.DataSetExtensions_test.dll" }, Group = "Mac OS X BCL tests group 1" },
+
 			new BclTestProjectInfo { Name = "SystemNetHttpTests", assemblies = new [] { "xammac_net_4_5_System.Net.Http_test.dll" }, Group = "Mac OS X BCL tests group 2" }, // do not mix with SystemNetHttpWebRequestTests since there is a type collision
 			new BclTestProjectInfo { Name = "SystemComponentModelDataAnnotationsTests", assemblies = new [] { "xammac_net_4_5_System.ComponentModel.DataAnnotations_test.dll" }, Group = "Mac OS X BCL tests group 2" },
 			new BclTestProjectInfo { Name = "SystemCoreTests", assemblies = new [] { "xammac_net_4_5_System.Core_test.dll" }, Group = "Mac OS X BCL tests group 2" },