Project - Cleaned up some test code

UI - Added scaffolding for databindings

src/Artemis.UI/Screens/ProfileEditor/LayerProperties/Tree/TreePropertyView.xaml

@@ -45,15 +45,15 @@
                 </Style>
             </ContentControl.Resources>
         </ContentControl>
-        
-        <Button Grid.Column="3"
-                Style="{StaticResource MaterialDesignIconButton}"
-                ToolTip="Change the property's data binding"
-                Width="24"
-                Height="24"
-                VerticalAlignment="Center"
-                Command="{s:Action OpenDataBindings}">
-            <materialDesign:PackIcon Kind="VectorLink" Height="16" Width="16" />
-        </Button>
+
+        <ToggleButton Grid.Column="3" 
+                      Style="{StaticResource MaterialDesignFlatPrimaryToggleButton}"
+                      ToolTip="Change the property's data binding" 
+                      Width="20"
+                      Height="20"
+                      VerticalAlignment="Center"
+                      IsChecked="{Binding DataBindingsOpen}">
+            <materialDesign:PackIcon Kind="VectorLink" Height="13" Width="13" />
+        </ToggleButton>
     </Grid>
 </UserControl>