added copyright headers

dnn/torch/lpcnet/add_dataset_config.py

dnn/torch/lpcnet/data/lpcnet_dataset.py

dnn/torch/lpcnet/engine/lpcnet_engine.py

dnn/torch/lpcnet/make_default_setup.py

dnn/torch/lpcnet/make_test_config.py

dnn/torch/lpcnet/models/lpcnet.py

dnn/torch/lpcnet/models/multi_rate_lpcnet.py

dnn/torch/lpcnet/print_lpcnet_complexity.py

dnn/torch/lpcnet/scripts/collect_multi_run_results.py

dnn/torch/lpcnet/scripts/make_animation.py

dnn/torch/lpcnet/scripts/update_checkpoints.py

dnn/torch/lpcnet/scripts/update_setups.py

dnn/torch/lpcnet/test_lpcnet.py

dnn/torch/lpcnet/train_lpcnet.py

dnn/torch/lpcnet/utils/data.py

dnn/torch/lpcnet/utils/endoscopy.py

dnn/torch/lpcnet/utils/layers/dual_fc.py

dnn/torch/lpcnet/utils/layers/pcm_embeddings.py

dnn/torch/lpcnet/utils/layers/subconditioner.py

dnn/torch/lpcnet/utils/misc.py