Draft: Build and release python wheels

[nrontsis]

This PR demonstrates the use of a github action to automatically build and publish binary wheels for libiec61850 and its python bindings.

As a result of this, on any linux distro with x86_64, i686, or aarch64 architecture, it's now possible to do:

> python3 -m pip install pyiec61850==1.5.2a1

and them immediately use libiec61850 via Python, e.g:

> wget https://raw.githubusercontent.com/nrontsis/libiec61850/v1.5/pyiec61850/test_pyiec61850.py
> python test_pyiec61850.py
[0.0, 0]
[10.0, 0]
client ok

The automatic generation and publishing of cross-platform python wheels is achieved via https://github.com/pypa/cibuildwheel.

Obviously this is currently a draft (e.g. it only supports Linux), but at this point, I am interested to hear if there would be appetite for accepting such a PR?

[sonarqubecloud]

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