Merge branch 'single-pytorch-module' of...

Merge branch 'single-pytorch-module' of https://gitlab.clarin-pl.eu/syntactic-tools/combo-lightning into single-pytorch-module

# Conflicts:
#	combo/nn/regularizers/__init__.py
#	combo/nn/regularizers/regularizer.py
#	combo/nn/regularizers/regularizer_applicator.py
#	combo/polish_model_training.ipynb
#	tests/fixtures/train_vocabulary/deprel_labels.txt
#	tests/fixtures/train_vocabulary/feats_labels.txt
#	tests/fixtures/train_vocabulary/lemma_characters.txt
#	tests/fixtures/train_vocabulary/non_padded_namespaces.txt
#	tests/fixtures/train_vocabulary/token_characters.txt
#	tests/fixtures/train_vocabulary/upostag_labels.txt
#	tests/fixtures/train_vocabulary/xpostag_labels.txt