Convert setup.py to toml

[RadioAndrea]

Follow the footsteps of FTS core and update the current old setup.py to be managed in a modern toml.

This should allow the multiple requirements files to be removed.

[brothercorvo]

delete setup.py

[phreed]

@nir2602
Here is a link to what I mentioned about creating scripts.
https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#creating-executable-scripts

[nir2602]

@nir2602 Here is a link to what I mentioned about creating scripts. https://packaging.python.org/en/latest/guides/writing-pyproject-toml/#creating-executable-scripts

I see, this is definitely useful!