Gets contextual culture server validation working

src/Umbraco.Web/Models/ContentEditing/ContentPropertyDto.cs

@@ -15,5 +15,13 @@ namespace Umbraco.Web.Models.ContentEditing
         public string Description { get; set; }
         public bool IsRequired { get; set; }
         public string ValidationRegExp { get; set; }
+
+        /// <summary>
+        /// The culture for the property which is only relevant for variant properties
+        /// </summary>
+        /// <remarks>
+        /// Since content currently is the only thing that can be variant this will only be relevant to content
+        /// </remarks>
+        public string Culture { get; set; }
     }
 }