Updates new UDI pickers that have start nodes for pre-values to also store UDIs for their prevalues, this has a knock on effect in that we need to be able to inject some server side config for pre-value editors (otherwise we'd have to make diff udi prevalue editors but that isn't very re-usable), so have implemented that and then updated all of the logic to deal with the udi idType.

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

@@ -1,4 +1,5 @@
-using System.Runtime.Serialization;
+using System.Collections.Generic;
+using System.Runtime.Serialization;
 
 namespace Umbraco.Web.Models.ContentEditing
 {
@@ -33,5 +34,11 @@ namespace Umbraco.Web.Models.ContentEditing
         [DataMember(Name = "view", IsRequired = true)]
         public string View { get; set; }
 
+        /// <summary>
+        /// This allows for custom configuration to be injected into the pre-value editor
+        /// </summary>        
+        [DataMember(Name = "config")]
+        public IDictionary<string, object> Config { get; set; }
+
     }
 }