added pkguid error public message

WebTest/Business/PkGuidBusiness.cs

         {
             if (obj.SomeText.EndsWith("_edited"))
             {
-                return LuResult<PkGuidAddDbo>.Error(LuStatus.InputError, "someText can not end with '_edited'");
+                return LuResult<PkGuidAddDbo>.Error(LuStatus.InputError, "someText can not end with '_edited'", "");
             }
             return LuResult<PkGuidAddDbo>.Ok(obj);
         }
         {
             if (!update.SomeText.EndsWith("_edited"))
             {
-                return LuResult<PkGuidAddDbo>.Error(LuStatus.InputError, "someText must end with '_edited'");
+                return LuResult<PkGuidAddDbo>.Error(LuStatus.InputError, "someText must end with '_edited'", "");
             }
             return LuResult<PkGuidAddDbo>.Ok(update);
         }