Show "Created" and "Last modified" date for menu items

For some use cases it would be nice to show some meta information on menu items, such as "created", "last modified", "filesize", "image dimensions" etc.

For instance, one of my menus is an embedded folder called "xdebug-log", with a bunch of nastily-named debug log files. The only meaningful information to find the correct file are the modified/created timestamps.

Thanks a lot!