This commit introduces new dependencies: "scikit-built" and "cmake".

scikit-build is a drop-in replacement to setuptools.setup function
allowing to easily compile and package extensions (C/C++/Cython) by
bridging CMake and setuptools. See http://scikit-build.org

CMake is is an open-source, cross-platform family of tools designed
to build, test and package software. See https://cmake.org

Currently, scikit-build and cmake have to be explicitly (see [1]) installed
on the system. This could be done by simply doing:

  pip install -U scikit-build cmake

…ng-skbuild

setup: simplify build system using scikit-build

…-build-system-using-skbuild

Revert "setup: simplify build system using scikit-build"