Add export data provider nsi item executor

Hcs.Broker/Api/Request/Nsi/ExportDataProviderNsiItemRequest.cs

@@ -23,5 +23,22 @@ namespace Hcs.Broker.Api.Request.Nsi
 
             return result.Items.OfType<NsiItemType>();
         }
+
+        internal async Task<string> SendAsync(exportDataProviderNsiItemRequestRegistryNumber registryNumber, CancellationToken token)
+        {
+            // http://open-gkh.ru/Nsi/exportDataProviderNsiItemRequest.html
+            var request = new exportDataProviderNsiItemRequest
+            {
+                Id = Constants.SIGNED_XML_ELEMENT_ID,
+                version = "10.0.1.2",
+                RegistryNumber = registryNumber
+            };
+
+            return await SendAsync(request, async asyncClient =>
+            {
+                var response = await asyncClient.exportDataProviderNsiItemAsync(CreateRequestHeader(), request);
+                return response.AckRequest.Ack;
+            }, token);
+        }
     }
 }