Implemented layer LED assignment

Added a centralised ProfileEditorSurface for communication between VMs
Prefixed Surface, Device and Led with Artemis to differentiate them better

src/Artemis.Storage/Entities/Profile/LedEntity.cs

@@ -1,11 +1,7 @@
-using System;
-
-namespace Artemis.Storage.Entities.Profile
+namespace Artemis.Storage.Entities.Profile
 {
     public class LedEntity
     {
-        public Guid Id { get; set; }
-
         public string LedName { get; set; }
         public int DeviceHash { get; set; }
     }