Added mousewheel support for PixiJS Lists.

lib/pixi/list.html

@@ -10,6 +10,7 @@
 
     <script src="../3rdparty/highlight/highlight.pack.js"></script>
     <script src="../../dist/iwmlib.3rdparty.js"></script>
+    <script src="../3rdparty/gsap/src/uncompressed/plugins/ThrowPropsPlugin.js"></script>
 
     <script src="../../dist/iwmlib.pixi.js"></script>
     <script src="../../dist/iwmlib.js"></script>
@@ -75,7 +76,8 @@ app.loadTextures([
 
     const bambooList = new List(bamboos, {
         orientation: 'horizontal',
-        width: 300
+        width: 300,
+        app
     })
     bambooList.x = 200
     bambooList.y = 10
@@ -98,7 +100,8 @@ app.loadTextures([
     const textList = new List(texts, {
         orientation: 'vertical',
         height: 200,
-        padding: 2
+        padding: 2,
+        app
     })
     textList.x = 200
     textList.y = 200