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- added `text-stats` filter
- stream writers accept iterable of data records now as well to improve throughput
- `text_utils.apply_max_length` now uses simple whitespace splitting instead of
searching for nearest word boundary to break a line, which results in a massive
speed improvement
- fix: `text_utils.remove_patterns` no longer multiplies the generated lines when using
more than one pattern
- added `remove-patterns` filter
- pretrain and translation text writers now buffer records by default (`-b`, `--buffer_size`)
in order to improve throughput
- jsonlines writers for pair, pretrain and translation data are now stream writers