Added size observer to enable auto-centering the editor at some point

src/Artemis.UI/Artemis.UI.csproj

@@ -147,7 +147,6 @@
       <Generator>MSBuild:Compile</Generator>
       <SubType>Designer</SubType>
     </ApplicationDefinition>
-    <Compile Include="Adorners\BoundingBoxAdorner.cs" />
     <Compile Include="Bootstrapper.cs" />
     <Compile Include="Converters\ColorToSolidColorBrushConverter.cs" />
     <Compile Include="Converters\InverseBooleanConverter.cs" />
@@ -162,6 +161,7 @@
     <Compile Include="Ninject\Factories\IModuleViewModelFactory.cs" />
     <Compile Include="Ninject\Factories\IProfileEditorViewModelFactory.cs" />
     <Compile Include="Ninject\UIModule.cs" />
+    <Compile Include="Observers\SizeObserver.cs" />
     <Compile Include="Properties\Resources.Designer.cs">
       <AutoGen>True</AutoGen>
       <DesignTime>True</DesignTime>