Add dlib as a capability

actions.mk

makefile

scripts/build_halide_python_binding.sh

scripts/ibug_train_set.sh

src/aam.py

src/datasets/ibug.py

src/datasets/imm.py

src/input_parser.py

src/landmarks.py

src/main.py

src/pca.py

src/reconstruction/reconstruction.py

src/reconstruction/texture.pyx

src/server.py

src/settings.py

src/utility.py