If you've been keeping an ear and/or eye out for any and all news related to the highly anticipated release of "Breaking Dawn - Part 2," then you're likely well aware of the fact that director Bill Condon has added a bonus post-credits scene to the film for fans. As far as we can tell, the castmembers don't know exactly what is in the scene, but actors Kellan Lutz and Ashley Greene have done a g…