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.UI/Screens/Module/ProfileEditor/ProfileTree/TreeItem/LayerView.xaml

@@ -0,0 +1,33 @@
+<UserControl x:Class="Artemis.UI.Screens.Module.ProfileEditor.ProfileTree.TreeItem.LayerView"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+             xmlns:s="https://github.com/canton7/Stylet"
+             xmlns:materialDesign="http://materialdesigninxaml.net/winfx/xaml/themes"
+             xmlns:treeItem="clr-namespace:Artemis.UI.Screens.Module.ProfileEditor.ProfileTree.TreeItem"
+             mc:Ignorable="d"
+             d:DesignHeight="450" d:DesignWidth="800"
+             d:DataContext="{d:DesignInstance {x:Type treeItem:LayerViewModel}}">
+    <!-- Capture clicks on full tree view item -->
+    <StackPanel Margin="-10" Background="Transparent">
+        <StackPanel.ContextMenu>
+            <ContextMenu>
+                <MenuItem Header="Rename" Command="{s:Action RenameElement}">
+                    <MenuItem.Icon>
+                        <materialDesign:PackIcon Kind="RenameBox" />
+                    </MenuItem.Icon>
+                </MenuItem>
+                <MenuItem Header="Delete" Command="{s:Action DeleteElement}">
+                    <MenuItem.Icon>
+                        <materialDesign:PackIcon Kind="TrashCan" />
+                    </MenuItem.Icon>
+                </MenuItem>
+            </ContextMenu>
+        </StackPanel.ContextMenu>
+        <StackPanel Orientation="Horizontal" Margin="10">
+            <materialDesign:PackIcon Kind="Layers" />
+            <TextBlock Text="{Binding ProfileElement.Name}" Margin="10 0 0 0" />
+        </StackPanel>
+    </StackPanel>
+</UserControl>