Layer effects - WIP commit

Profile editor - Show brush icons at different parts in the editor

src/Artemis.Core/Models/Profile/LayerGeneralProperties.cs

@@ -18,6 +18,9 @@ namespace Artemis.Core.Models.Profile
         [PropertyDescription(Name = "Brush type", Description = "The type of brush to use for this layer")]
         public LayerBrushReferenceLayerProperty BrushReference { get; set; }
 
+        [PropertyDescription(Name = "Effect type", Description = "The type of effect to use for this layer")]
+        public LayerEffectReferenceLayerProperty EffectReference { get; set; }
+
         protected override void PopulateDefaults()
         {
             ShapeType.DefaultValue = LayerShapeType.Rectangle;