Guidata

Bug fixes:

* `widgets.console.interpreter`: replaced threading.Thread.isAlive (deprecated since Python 3.8)

Other changes:

* `DataSet.edit`, `DataSet.view` and `DataSetGroup.edit`: added missing arguments `size` and `wordwrap`
* Documentation: added check-list before submitting a patch (see [`contribute.rst`](https://github.com/PlotPyStack/guidata/blob/master/doc/dev/contribute.rst) file)
* Fixed some typing annotations and docstrings, as well as Pylint false positives
* Removed unused functions from `guidata.utils.encoding` module:
* `transcode`
* `getfilesystemencoding`
* Added missing docstrings and typing annotations in modules:
* `guidata.dataset.qtitemwidgets`
* `guidata.dataset.qtwidgets`
* `guidata.utils.encoding`
* `guidata.utils.misc`

Bug fixes:

* [Issue 65](https://github.com/PlotPyStack/guidata/issues/65) - QVariant import erroneously used in typing annotations

Other changes:

* `tests.test_callbacks`: added an example of a callback function for dynamically
changing the list of choices of a `ChoiceItem` object

Bug fixes:

* [Issue 63](https://github.com/PlotPyStack/guidata/issues/63) - [3.0.2] there is no more guidata-test script

* [Issue 62](https://github.com/PlotPyStack/guidata/issues/62) - [3.0.2] sphinx doc hang when building on the Debian infra

Other changes:

* [Issue 64](https://github.com/PlotPyStack/guidata/issues/64) - Add guidata-tests.desktop file to repository

Fixed project description:

* This could be seen as a detail, but as this description text is used by PyPI,
it is important to have a correct description.

* Of course, nobody reads the description text, so it was not noticed since the
first release of guidata v3.0.

Bug fixes:

* [Pull Request 61](https://github.com/PlotPyStack/guidata/pull/61) - Make the build reproducible, by [lamby](https://github.com/lamby)

* [Issue 59](https://github.com/PlotPyStack/guidata/issues/59) - [3.0.1] the doc is missing

* [Issue 60](https://github.com/PlotPyStack/guidata/issues/60) - [3.0.1] pyproject.toml/setuptools: automatic package discovery does not work on debian

API changes (fixes inconsistencies in API):

* Moved `guidata.dataset.iniio.WriterMixin` to `guidata.dataset.io.WriterMixin`
* Moved `guidata.dataset.iniio.BaseIOHandler` to `guidata.dataset.io.BaseIOHandler`
* Moved `guidata.dataset.iniio` to `guidata.dataset.io.inifmt` and renamed:
* `UserConfigIOHandler` to `INIHandler`
* `UserConfigWriter` to `INIWriter`
* `UserConfigReader` to `INIReader`
* Moved `guidata.dataset.jsonio` to `guidata.dataset.io.jsonfmt`
* Moved `guidata.dataset.hdf5io` to `guidata.dataset.io.h5fmt`

Bug fixes:

* [Issue 57](https://github.com/PlotPyStack/guidata/issues/57) - [Errno 2] No such file or directory: 'doc/dev/v2_to_v3.csv'

* [Issue 58](https://github.com/PlotPyStack/guidata/issues/58) - Test suite: missing dependencies (pandas, Pillow)

* Modules `guidata.dataset.datatypes` and `guidata.dataset.dataitems` should not
critically depend on Qt (only modules specific to GUI should depend on Qt, such
as `guidata.dataset.qtwidgets`). This was a regression introduced in version 3.0.0.
A new unit test was added to prevent this kind of regression in the future.

* Fixed documentation generation `.readthedocs.yaml` file (Qt 5.15 was not
installed on ReadTheDocs servers, causing documentation build to fail)

Other changes:

* [Pull Request 55](https://github.com/PlotPyStack/guidata/pull/55) - DateItem and DateTimeItem: added 'format' parameter for formatting, by [robochat](https://github.com/robochat)

* Packaging: still using `setuptools`, switched from `setup.cfg` to `pyproject.toml`
for configuration (see [PEP 517](https://www.python.org/dev/peps/pep-0517/))