Add build wheeel on CI using cibuildwheel and modernize metadata

[Czaki]

In this PR I have added pyproject.toml with information about required packages bu build wheel (section build-system). This will alow to install mahotas with pip install mahotas even when wheels are not available.

This PR also adds cibuildwheel with proper workflow and configuration.

I have decided to not build wheels for musllinux, pypy in version 3.7 and 3.10 and 32-bits manylinux because of lack of numpy wheels.

I also need to disable testing on 32-bits windows and pypy because of lack of scipy wheels (it may be possible to fix this, but it will drastically increase build time).

I have also added steep for automatically upload wheels for PyPI. It will require additional configuration described here: https://docs.pypi.org/trusted-publishers/adding-a-publisher/

I have modified test_extras to remove freeimage from it, as it does not exist on pypi.

Suppress #139

[luispedro]

Sorry for the delay in handling this. Merged now! Thank you!