Faker-file

------
2023-06-18

- Minor fixes and documentation improvements.

------
2023-06-15

- Improved ``SFTPStorage`` tests.
- Stop testing against Python 3.7.
- Stop testing against Django 4.0.

------
2023-06-14

- Add ``SFTPStorage`` and correspondent tests.

------
2023-06-08

- Add optional ``subject`` argument to the ``EmlFileProvider``. Update
tests accordingly.
- Add data integrity tests.

------
2023-06-06

- Added ``FileFromPathProvider`` provider, which simply picks a file
from path given. Add correspondent ``create_inner_file_from_path``
inner function.

----
2023-06-05

- Added ``format_func`` argument to most of the providers. This allows to
control which formatter function will be used as a default formatter.
Previously it has been ``faker.provider.Python.pystr_format``, which has
been changed to ``faker.provider.Python.parse``, since the latter is
more convenient (as it does not transform characters
like ``?``, ``!``, ` into something else using ``bothify`` method).
To revert this behaviour, make sure to pass a callable
function ``faker_file.base.pystr_format_func`` in ``format_func`` argument
to each correspondent provider or inner function.
- Added ``create_inner_random_file_from_dir`` inner function.
- Tested against Django 4.2.
- Stop testing against Django 2.2.