add project files and update license

README.md

convert_pickle_to_kaldi_ark.py

extract_list

lib/__init__.py

lib/data_loaders/DataLoader.py

lib/data_loaders/VoxClsLoader.py

lib/data_loaders/__init__.py

lib/feature_extractors/FeatureExtractor.py

lib/feature_extractors/SpectrogramExtractor.py

lib/feature_extractors/__init__.py

lib/feature_extractors/spectrogram_utils.py

lib/models/EmbeddingLayer.py

lib/models/__init__.py

lib/models/unet_model.py

lib/models/unet_parts.py

lib/tools/__init__.py

lib/tools/io.py

lib/tools/testing_tools.py

lib/tools/utils.py

mfcc_extractor.py