refactor ImageBrowser, add NumericUpDown, delete info controls

HandyControlDemo/Data/MessageToken.cs

@@ -28,6 +28,8 @@
 
         public static readonly string CirclePanelDemoCtl = nameof(CirclePanelDemoCtl);
 
+        public static readonly string NumericUpDownDemoCtl = nameof(NumericUpDownDemoCtl);
+
         public static readonly string ButtonDemoCtl = nameof(ButtonDemoCtl);
 
         public static readonly string ToggleButtonDemoCtl = nameof(ToggleButtonDemoCtl);

HandyControlDemo/Data/MessageToken.tt

@@ -16,7 +16,8 @@ var controlList = new List<string>
 	"StepBarDemoCtl",
 	"ClockDemoCtl",
 	"TimePickerDemoCtl",
-	"CirclePanelDemoCtl"
+	"CirclePanelDemoCtl",
+	"NumericUpDownDemoCtl"
 };
 var styleList = new List<string>
 {