Layer effects - WIP commit

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

src/Artemis.Core/Plugins/LayerBrush/Abstract/PropertiesLayerBrush.cs

@@ -38,6 +38,7 @@ namespace Artemis.Core.Plugins.LayerBrush.Abstract
         internal void InitializeProperties(ILayerService layerService)
         {
             Properties = Activator.CreateInstance<T>();
+            Properties.LayerBrush = this;
             Properties.InitializeProperties(layerService, Layer, "LayerBrush.");
             PropertiesInitialized = true;