Fastobo

Added
- `fastobo.exceptions` module with dedicated exception types to report specific errors.
- `fastobo.dump_owl` to convert and write an OBO document to an OWL ontology (using `fastobo-owl` and `horned-owl`) in Functional-style syntax (using `horned-functional`).
Changed
- Bumped `fastobo` to `v0.14.0`.
- Bumped `fastobo-graphs` to `v0.4.4`.
- `DateClause` may now store a `datetime.date` instead of a `datetime.datetime` if the source document contains a date without time specifier.
- PyPI source distribution now contains vendored Rust sources, allowing compilation without network access.
Fixed
- `setup.py` script not auto-installing the Rust compiler in latest `setuptools_rust` versions.

Added
- Aarch64 wheels built from GitHub Actions and deployed to PyPI ([245](https://github.com/fastobo/fastobo-py/issues/245)).

Changed
- Bumped `pyo3` dependency to `v0.14.1`.
Fixed
- `fastobo.iter` erroneously wrapping `SyntaxError` raised in the header into a `TypeError`.

Changed
- Bumped `fastobo` dependency to `v0.13.1`.
Fixed
- Curly braces not being properly escaped when writing unquoted strings.

Added
- `__hash__` implementation to `fastobo.id.BaseIdent` subclasses.
- `__init__` method to classes missing one in `fastobo.header`.
Changed
- Bumped `pyo3` dependency to `v0.13.2`.
- Bumped `fastobo` dependency to `v0.13.0`.
Fixed
- Broken `__repr__` implementation for some types.
Removed
- `unsafe` blocks in derive macros implementation of `IntoPyObject` for OBO clauses.
- Support for Python 3.5.
- `fastobo.id.IdentPrefix` and `fastobo.id.IdentLocal` classes.

Fixed
- `setup.py` crashing when compiling from source on a platform with stable
Rust as the default toolchain ([182](https://github.com/fastobo/fastobo-py/pull/182),
thanks to [alexhenrie](https://github.com/alexhenrie)).