[FL-3134] BadUSB: Script interpreter refactoring (#2485)

* Script command and character tables
* Non-blocking stringdelay, docs update
* altchar/altstring fix
* Layout select UI fix
* Remove debug print

Co-authored-by: あく <alleteam@gmail.com>

applications/main/bad_usb/scenes/bad_usb_scene_config.c

@@ -17,7 +17,7 @@ void bad_usb_scene_config_on_enter(void* context) {
 
     submenu_add_item(
         submenu,
-        "Keyboard Layout",
+        "Keyboard Layout (global)",
         SubmenuIndexKeyboardLayout,
         bad_usb_scene_config_submenu_callback,
         bad_usb);