Merge branch 'tf2-pipelines' into 'master'

bob/bio/face/config/baseline/facenet_sanderberg.py

bob/bio/face/config/baseline/gabor_graph.py

bob/bio/face/config/baseline/helpers.py

...o/face/config/baseline/inception_resnetv1_casiawebface.py

bob/bio/face/config/baseline/inception_resnetv1_msceleb.py

...o/face/config/baseline/inception_resnetv2_casiawebface.py

bob/bio/face/config/baseline/inception_resnetv2_msceleb.py

bob/bio/face/config/baseline/lgbphs.py

bob/bio/face/config/baseline/tf2_inception_resnet.py

bob/bio/face/embeddings/__init__.py

bob/bio/face/embeddings/facenet_sanderberg.py

bob/bio/face/embeddings/idiap_inception_resnet.py

bob/bio/face/embeddings/tensorflow_compat_v1.py

bob/bio/face/embeddings/tf2_inception_resnet.py

bob/bio/face/extractor/GridGraph.py

bob/bio/face/preprocessor/FaceCrop.py

bob/bio/face/preprocessor/HistogramEqualization.py

bob/bio/face/preprocessor/INormLBP.py

bob/bio/face/preprocessor/Scale.py

bob/bio/face/preprocessor/SelfQuotientImage.py