add
fun addUndoRedoMenuItems(context: Context, configuration: PdfConfiguration?, undoStringId: Int, redoStringId: Int, @DrawableRes undoIcon: Int, @DrawableRes redoIcon: Int, @ColorInt iconColor: Int, @ColorInt iconColorActivated: Int): List<ContextualToolbarMenuItem>
Creates the undo/redo menu items for the toolbar. Returns a list of menu items to be added to the toolbar.