Mzml2isa

Fixed
- `stato.owl` ontology missing from the PyPI source distribution.

Added
- Support for Python 3.10.
Changed
- Updated redistributed PSI-MS file to latest version.
- Bumped required `pronto` dependency to `v2.0` and up.
- Use `functools.cached_property` instead of `cached_property.cached_property` in recent Python version where it is available.
- Use `importlib.resources` instead of `pkg-resources` for managing the package resources.
Removed
- Support for Python 2.7.
- `six` dependency.

Fixed
- Allow higher versions of `openpyxl` to be installed ([46](https://github.com/ISA-tools/mzml2isa/pull/46)).
Changed
- Added support for Python 3.9.

Fixed
- Issue with cli not being accessible as expected - see PR ([40](https://github.com/ISA-tools/mzml2isa/pull/43)).
Changed
- Added support for Python 3.8.
- Changed Pyinstaller requirement for >= v3.6 (this is only for making the windows standalone executable and is not part of the standard installation)

Fixed
- Issue in ISA Investigation template failing the ISA-API test suite.
([39](https://github.com/ISA-tools/mzml2isa/issues/39)).
Changed
- Dropped support for Python 3.4.
- Added support for Python 3.7.
- Bumped `pronto` requirement to `0.12.0`.
- Bumped `fs` requirement to `2.4.0`.

Changed
- Added `fs` version `2.2.0` to supported `fs` versions.
- Bumped `pronto` requirement to `0.11.0`