In-game settings menu using separate Lua environment (#15614)

src/script/lua_api/l_pause_menu.h

@@ -0,0 +1,17 @@
+// Luanti
+// SPDX-License-Identifier: LGPL-2.1-or-later
+// Copyright (C) 2025 grorp
+
+#pragma once
+
+#include "l_base.h"
+
+class ModApiPauseMenu: public ModApiBase
+{
+private:
+	static int l_show_keys_menu(lua_State *L);
+	static int l_show_touchscreen_layout(lua_State *L);
+
+public:
+	static void Initialize(lua_State *L, int top);
+};