[misc] removed everything related to GANs (moved to a branch), added the fargo dataset

bob/learn/pytorch/architectures/ConditionalGAN.py

bob/learn/pytorch/architectures/DCGAN.py

bob/learn/pytorch/architectures/DRGAN.py

bob/learn/pytorch/architectures/DRGANOriginal.py

bob/learn/pytorch/architectures/WassersteinCGAN.py

bob/learn/pytorch/architectures/__init__.py

bob/learn/pytorch/datasets/fargo.py

bob/learn/pytorch/scripts/sample_drgan.py

bob/learn/pytorch/scripts/show_training_images.py

bob/learn/pytorch/scripts/show_training_stats.py

bob/learn/pytorch/scripts/train_conditionalgan_casia.py

bob/learn/pytorch/scripts/train_conditionalgan_multipie.py

bob/learn/pytorch/scripts/train_dcgan_multipie.py

bob/learn/pytorch/scripts/train_drgan_mpie_casia.py

bob/learn/pytorch/scripts/train_drgan_multipie.py

bob/learn/pytorch/scripts/train_wcgan_multipie.py

bob/learn/pytorch/trainers/ConditionalGANTrainer.py

bob/learn/pytorch/trainers/DCGANTrainer.py

bob/learn/pytorch/trainers/DRGANTrainer.py

bob/learn/pytorch/trainers/ImprovedWassersteinCGANTrainer.py