:sparkles: Python wrapper: use poetry

[ff137]

Replaces the existing setup.py/setup.cfg/requirements.txt with pyproject.toml, and uses poetry in CICD build

[ff137]

I realise I don't know enough about how the multi-architecture wheels are built, to replace things properly with poetry

[andrewwhitehead]

I looked into this a bit but there seems to be no good way to pass through the python-tag and plat-name overrides for bdist_wheel when using pyproject.toml. Poetry doesn't seem to support them at all (there are open issues) and pip is looking at removing the --build-option flag which could allow it (if using setuptools as the build system).