Added layer properties to core and hooked it up with the UI

Implemented timeline caret scrolling logic
Added special treeview style for the layer properties tree

src/Artemis.UI/Screens/Module/ProfileEditor/LayerProperties/LayerPropertiesView.xaml.cs

@@ -1,22 +1,9 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-using System.Windows;
-using System.Windows.Controls;
-using System.Windows.Data;
-using System.Windows.Documents;
-using System.Windows.Input;
-using System.Windows.Media;
-using System.Windows.Media.Imaging;
-using System.Windows.Navigation;
-using System.Windows.Shapes;
+using System.Windows.Controls;
 
 namespace Artemis.UI.Screens.Module.ProfileEditor.LayerProperties
 {
     /// <summary>
-    /// Interaction logic for LayerPropertiesView.xaml
+    ///     Interaction logic for LayerPropertiesView.xaml
     /// </summary>
     public partial class LayerPropertiesView : UserControl
     {
@@ -27,4 +14,4 @@ namespace Artemis.UI.Screens.Module.ProfileEditor.LayerProperties
 
         // Keeping the scroll viewers in sync is up to the view, not a viewmodel concern
     }
-}
+}