add GeometryAnimation Demo

src/Shared/HandyControlDemo_Shared/Data/MessageToken.cs

@@ -124,6 +124,8 @@
 
 	    public static readonly string HatchBrushGeneratorDemoCtl = nameof(HatchBrushGeneratorDemoCtl);
 
+        public static readonly string GeometryAnimationDemoCtl = nameof(GeometryAnimationDemoCtl);
+
     	/*-------------------- Styles --------------------*/
 
 	    public static readonly string ButtonDemoCtl = nameof(ButtonDemoCtl);

src/Shared/HandyControlDemo_Shared/Data/MessageToken.tt

@@ -96,7 +96,8 @@ var styleList = new List<string>
 };
 var toolList = new List<string>
 {
-	"HatchBrushGeneratorDemoCtl"
+	"HatchBrushGeneratorDemoCtl",
+	"GeometryAnimationDemoCtl"
 };
 var windowList = new List<string>
 {