Merge branch 'common/image-perturbators' into 'master'

...ommon/dataset/perturbations/image_modifiers/saturation.py

common/research/common/dataset/perturbations/perturbator.py

common/research/common/dataset/perturbations/utils.py

common/research/common/dataset/roco_dataset.py

common/research/common/dataset/roco_dataset_descriptor.py

common/research/common/dataset/split.py

common/research/common/dataset/split_dataset.py

common/research/common/dataset/tensorflow_record.py

common/research/common/dataset/twitch/__init__.py

...on/research/common/dataset/twitch/aerial_view_detector.py

common/research/common/dataset/twitch/mask_aerial.jpg

common/research/common/dataset/twitch/mask_detector.py

common/research/common/dataset/twitch/mask_robot_view.jpg

.../research/common/dataset/twitch/robots_views_extractor.py

...on/research/common/dataset/twitch/twitch_roco_datasets.py

common/research/common/dataset/union_dataset.py

common/research/common/image_pipeline_evaluation/__init__.py

...mmon/image_pipeline_evaluation/image_dataset_generator.py

...pipeline_evaluation/image_pipeline_evaluation_reporter.py

...mon/image_pipeline_evaluation/image_pipeline_evaluator.py