Debug menu, reorganized game scene

resources/console_commands/list_scenes_command.gd

@@ -0,0 +1,14 @@
+class_name ListScenesCommand extends ConsoleCommand
+
+func get_command_name() -> String:
+	return "list_scenes"
+
+func get_help_text() -> String:
+	return "Lists available scenes for swapping"
+
+func run(args: Array, context: Dictionary) -> String:
+	var registry: Array = context["scene_registry"]
+	var lines: PackedStringArray = []
+	for entry: Dictionary in registry:
+		lines.append(entry["name"])
+	return "\n".join(lines)