ICoreBizObjectModel for all

server/AyaNova/models/UnitModel.cs

@@ -9,7 +9,7 @@ namespace AyaNova.Models
     //NOTE: Any non required field (nullable in DB) sb nullable here, i.e. decimal? not decimal, 
     //otherwise the server will call it an invalid record if the field isn't sent from client
    
-    public class UnitModel
+    public class UnitModel : ICoreBizObjectModel
     {
         public long Id { get; set; }
         public uint Concurrency { get; set; }