adding dlib library to CI environment
It seems dlib library is not part of the CI environment, since it cannot be found by CI
See errors in build: https://gitlab.idiap.ch/bob/bob.ip.dlib/builds/59586
It seems dlib library is not part of the CI environment, since it cannot be found by CI
See errors in build: https://gitlab.idiap.ch/bob/bob.ip.dlib/builds/59586