Crowsetta

changed
- switch to using `poetry` for development
[79](https://github.com/NickleDave/crowsetta/pull/79)
- raise minimum version of `evfuncs` to 0.3.1
[79](https://github.com/NickleDave/crowsetta/pull/79)
- raise minimum version of `koumura` to 0.2.0
[79](https://github.com/NickleDave/crowsetta/pull/79)
- change to using GitHub Actions for continuous integration
[83](https://github.com/NickleDave/crowsetta/pull/83)

fixed
- fix dependencies and Python so they are not pinned to major version
[83](https://github.com/NickleDave/crowsetta/pull/83)

changed
- switch to using `soundfile` library to parse .wav files
[75](https://github.com/NickleDave/crowsetta/pull/75)
see discussion on issue [67](https://github.com/NickleDave/crowsetta/issues/67).

fixed
- fix `phn2annot` function so it works with `.PHN` and `.WAV` files found in
some versions of TIMIT dataset
[75](https://github.com/NickleDave/crowsetta/pull/75)
+ needed to make extension checking case-insensitive,
see issue [68](https://github.com/NickleDave/crowsetta/issues/68)
+ and also switch to `soundfile` library to be able to parse the specific NIST format of .WAV files

fixed
- add missing comma in `ENTRY_POINTS` in `setup.py`
so that built-in formats are properly installed
[599149f](https://github.com/NickleDave/crowsetta/commit/599149f2bb52fb4cd01deca4d4b151fff085171c)

added
- make `csv` a format
[60](https://github.com/NickleDave/crowsetta/pull/60);
See discussion on
[55](https://github.com/NickleDave/crowsetta/issues/55).

changed
- change name of `Transcriber` parameter `annot_format` to just `format`
[64](https://github.com/NickleDave/crowsetta/pull/64)
- change name of `Annotation` attributes `annot_file` and `audio_file` to
`annot_path` and `audio_path`, for clarity and to match what's used in
the `vak` library
[65](https://github.com/NickleDave/crowsetta/pull/65)

added
- add `phn` module that parses `.phn` files from TIMIT dataset
[59](https://github.com/NickleDave/crowsetta/pull/59)

changed
- change types of `Annotation` attributes `annot_file` and `audio_path` from `str` (string)
to `pathlib.Path`, to fix errors raised when passing in `Path` objects (because the
attribute validator requires a string), and because it's preferable to work with `Path`
objects over strings [52](https://github.com/NickleDave/crowsetta/pull/52)
- change default value for `koumura2annot` parameter `wavpath` so that the function
will work regardless of current working directory for user, instead of requiring
them to be in the parent directory of the `.wav` files that `wavpath` refers to
[53](https://github.com/NickleDave/crowsetta/pull/53)

fixed
- fixed error that `koumura2annot` function threw when `annot_file` was a `pathlib.Path`
and not a string [53](https://github.com/NickleDave/crowsetta/pull/53)