Add p5-Unix-Groups-FFI 0.002

Unix::Groups::FFI provides a FFI interface to several syscalls related to Unix
groups, including getgroups(2), setgroups(2), getgrouplist(3), and
initgroups(3). As such it will only work on Unix-like operating systems.

WWW: http://search.cpan.org/dist/Unix-Groups-FFI/