Handle rename(), link(), symlink()
Handle rename(), link(), symlink()

This avoids packing files that were created by the experiment using one
of these syscalls.

JosuaKrause/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip,JosuaKrause/reprozip,ViDA-NYU/reprozip,ViDA-NYU/reprozip