feat: Implement Change View and Renderer Options menus

- Added functionality to display and navigate the Change View menu in SixelRenderer and SoftwareRenderer.
- Introduced methods to draw the Change View and Renderer Options menus, including handling cursor and selection states.
- Updated WolfClassicMenuArt to include a customize label for the new menu.
- Enhanced WolfMenuScreen to support new menu states.
- Created tests for Change View menu interactions, ensuring proper transitions and renderer settings toggling.
- Implemented persistence for renderer settings in Flutter, allowing settings to be saved and loaded from a local file.

Signed-off-by: Hans Kokx <hans.d.kokx@gmail.com>

packages/wolf_3d_flutter/lib/wolf_3d_flutter.dart

@@ -85,6 +85,9 @@ class Wolf3d {
   WolfEngine launchEngine({
     required void Function() onGameWon,
     void Function()? onQuit,
+    WolfRendererCapabilities? rendererCapabilities,
+    WolfRendererSettings? rendererSettings,
+    void Function(WolfRendererSettings settings)? onRendererSettingsChanged,
   }) {
     if (availableGames.isEmpty) {
       throw StateError(
@@ -106,6 +109,9 @@ class Wolf3d {
       // so backing out of the top-level menu should not pop the route.
       onMenuExit: () {},
       onQuit: onQuit,
+      rendererCapabilities: rendererCapabilities,
+      rendererSettings: rendererSettings,
+      onRendererSettingsChanged: onRendererSettingsChanged,
       onGameSelected: (game) {
         _activeGame = game;
         audio.activeGame = game;