create sync job items pages

MediaBrowser.Server.Implementations/Sync/AppSyncProvider.cs

@@ -30,6 +30,20 @@ namespace MediaBrowser.Server.Implementations.Sync
             });
         }
 
+        public IEnumerable<SyncTarget> GetSyncTargets(string userId)
+        {
+            return _deviceManager.GetDevices(new DeviceQuery
+            {
+                SupportsSync = true,
+                UserId = userId
+
+            }).Items.Select(i => new SyncTarget
+            {
+                Id = i.Id,
+                Name = i.Name
+            });
+        }
+
         public DeviceProfile GetDeviceProfile(SyncTarget target)
         {
             return new DeviceProfile();