Add refactored nsi common service handler

Hcs.Client/Client/UniClient.cs

@@ -13,6 +13,8 @@ namespace Hcs.Client
     {
         public NsiApi Nsi => new(this);
 
+        public NsiCommonApi NsiCommon => new(this);
+
         public void SetSigningCertificate(X509Certificate2 cert, string pin = null)
         {
             pin ??= Constants.DEFAULT_CERTIFICATE_PIN;