Mersenne prime hashing fix.

[Apsod]

This pull request aims to fix issue #198 by implementing a numpy-compatible function that does not overflow, based on separating low and high bits in multiplicands and using the mersenne prime modulus bit-trick.

pytest -sv ./tests/ passed without warnings for dedup, see below for summary:

===================================================================================== warnings summary ======================================================================================
tests/executor/test_local.py: 85 warnings
tests/test_io.py: 3 warnings
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/botocore/auth.py:419: DeprecationWarning: datetime.datetime.utcnow() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.now(datetime.UTC).
    datetime_now = datetime.datetime.utcnow()

tests/executor/test_local.py::TestLocalExecutor::test_executor
tests/executor/test_local.py::TestLocalExecutor::test_executor
tests/executor/test_local.py::TestLocalExecutor::test_executor
tests/executor/test_local.py::TestLocalExecutor::test_executor
tests/executor/test_local.py::TestLocalExecutor::test_executor
tests/executor/test_local.py::TestLocalExecutor::test_executor
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/multiprocess/popen_fork.py:66: DeprecationWarning: This process (pid=144783) is multi-threaded, use of fork() may lead to deadlocks in the child.
    self.pid = os.fork()

tests/pipeline/test_filters.py::TestFilters::test_url
  /home/user/miniconda3/envs/datatrove/lib/python3.12/tarfile.py:2221: DeprecationWarning: Python 3.14 will, by default, filter extracted tar archives and reject files or modify their metadata. Use the filter argument to control this behavior.
    warnings.warn(

tests/pipeline/test_ngrams_decont.py::TestNGramDecont::test_label_only
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/huggingface_hub/file_download.py:1132: FutureWarning: `resume_download` is deprecated and will be removed in version 1.0.0. Downloads always resume when possible. If you want to force a new download, use `force_download=True`.
    warnings.warn(

tests/pipeline/test_word_tokenizers.py::TestWordTokenizers::test_sent_tokenizers
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/jieba/_compat.py:18: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html
    import pkg_resources

tests/pipeline/test_word_tokenizers.py::TestWordTokenizers::test_sent_tokenizers
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/pkg_resources/__init__.py:2832: DeprecationWarning: Deprecated call to `pkg_resources.declare_namespace('google')`.
  Implementing implicit namespace packages (as specified in PEP 420) is preferred to `pkg_resources.declare_namespace`. See https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages
    declare_namespace(pkg)

tests/pipeline/test_word_tokenizers.py::TestWordTokenizers::test_sent_tokenizers
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/pkg_resources/__init__.py:2832: DeprecationWarning: Deprecated call to `pkg_resources.declare_namespace('sphinxcontrib')`.
  Implementing implicit namespace packages (as specified in PEP 420) is preferred to `pkg_resources.declare_namespace`. See https://setuptools.pypa.io/en/latest/references/keywords.html#keyword-namespace-packages
    declare_namespace(pkg)

tests/pipeline/test_word_tokenizers.py::TestWordTokenizers::test_sent_tokenizers
  /home/user/miniconda3/envs/datatrove/lib/python3.12/site-packages/google/protobuf/internal/well_known_types.py:91: DeprecationWarning: datetime.datetime.utcfromtimestamp() is deprecated and scheduled for removal in a future version. Use timezone-aware objects to represent datetimes in UTC: datetime.datetime.fromtimestamp(timestamp, datetime.UTC).
    _EPOCH_DATETIME_NAIVE = datetime.datetime.utcfromtimestamp(0)

tests/test_io.py::TestIO::test_safely_create_file_locking
tests/test_io.py::TestIO::test_safely_create_file_locking
tests/test_io.py::TestIO::test_safely_create_file_locking
  /home/user/miniconda3/envs/datatrove/lib/python3.12/multiprocessing/popen_fork.py:66: DeprecationWarning: This process (pid=144783) is multi-threaded, use of fork() may lead to deadlocks in the child.
    self.pid = os.fork()

-- Docs: https://docs.pytest.org/en/stable/how-to/capture-warnings.html
================================================================== 50 passed, 1 skipped, 103 warnings in 207.21s (0:03:27) ==================================================================