feat: nested configs overwriting

Created by: IgnatovFedor

Features

• overwrite parameter to change nested configs

Removed configs

• ner_rus_bert_probas

Modified components

• return_offsets parameter is removed from the torch_transformers_ner_preprocessor. Component now returns offsets.
• return_probas and return_tags_and_probas parameters are removed from the torch_transformers_sequence_tagger. Component now returns tags and probas.