Add export from nsi-common service

Hcs.TestApp/ClientDemo/NsiCommonDemo.cs

@@ -0,0 +1,19 @@
+using Hcs.ClientApi;
+using Newtonsoft.Json;
+using System;
+using System.Windows.Forms;
+
+namespace Hcs.ClientDemo
+{
+    public class NsiCommonDemo
+    {
+        public static void DemoExportNsiItem2(HcsClient client)
+        {
+            var result = client.NsiCommon.GetNsiItem(2).Result;
+            var json = JsonConvert.SerializeObject(result);
+            Clipboard.SetText(json);
+
+            Console.WriteLine($"Результат скопирован в буфер обмена!\r\n");
+        }
+    }
+}

Hcs.TestApp/ClientDemo/Program.cs

@@ -68,7 +68,9 @@ namespace Hcs.ClientDemo
                 if (false) FileStoreDemo.DemoGetFileLength(client);
                 if (false) FileStoreDemo.DemoGostHash(client);
 
-                if (true) NsiDemo.DemoExportNsiItem51(client);
+                if (false) NsiDemo.DemoExportNsiItem51(client);
+
+                if (true) NsiCommonDemo.DemoExportNsiItem2(client);
             }
             catch (Exception ex)
             {