Fix deep-pix-bis, add more tests, update docs

bob/pad/face/config/deep_pix_bis.py

bob/pad/face/config/replay_attack.py

bob/pad/face/config/svm_frames.py

bob/pad/face/deep_pix_bis.py

bob/pad/face/test/test_deep_pix_bis.py

bob/pad/face/test/test_transformers.py

bob/pad/face/transformer/VideoToFrames.py

doc/baselines.rst

doc/conf.py

doc/index.rst

doc/installation.rst

doc/links.rst

setup.py