Added a CelebA file-list based HLDI and entry points

bob/pad/face/config/celeb_a.py

bob/pad/face/database/__init__.py

bob/pad/face/database/celeb_a.py

bob/pad/face/lists/celeb_a/grandtest/dev/for_attack.lst

bob/pad/face/lists/celeb_a/grandtest/dev/for_real.lst

bob/pad/face/lists/celeb_a/grandtest/eval/for_attack.lst

bob/pad/face/lists/celeb_a/grandtest/eval/for_real.lst

bob/pad/face/lists/celeb_a/grandtest/train/for_attack.lst

bob/pad/face/lists/celeb_a/grandtest/train/for_real.lst

doc/links.rst

setup.py