init branch

src/Shared/HandyControlDemo_Shared/UserControl/Controls/SplitButtonDemoCtl.xaml

@@ -0,0 +1,6 @@
+<UserControl x:Class="HandyControlDemo.UserControl.SplitButtonDemoCtl"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:userControl="clr-namespace:HandyControlDemo.UserControl">
+    <userControl:UnderConstruction/>
+</UserControl>

src/Shared/HandyControlDemo_Shared/UserControl/Controls/SplitButtonDemoCtl.xaml.cs

@@ -0,0 +1,10 @@
+namespace HandyControlDemo.UserControl
+{
+    public partial class SplitButtonDemoCtl
+    {
+        public SplitButtonDemoCtl()
+        {
+            InitializeComponent();
+        }
+    }
+}