Add migrated to .NET 8.0 variant of Hcs.Client

Hcs.ClientNet/Client/Api/Registry/RegistryElement.cs

@@ -0,0 +1,9 @@
+namespace Hcs.ClientNet.Api.Registry
+{
+    public class RegistryElement(string code, string guid)
+    {
+        public string Code { get; } = code;
+
+        public string GUID { get; } = guid;
+    }
+}