Added support for nested settings models so settings can be grouped together and reused for multiple providers.

src/NzbDrone.Api/ClientSchema/FieldMapping.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace NzbDrone.Api.ClientSchema
+{
+    public class FieldMapping
+    {
+        public Field Field { get; set; }
+        public Type PropertyType { get; set; }
+        public Func<object, object> GetterFunc { get; set; }
+        public Action<object, object> SetterFunc { get; set; }
+    }
+}