Updating the Python module build

[bcoconni]

This PR is meant to simplify the build of the Python module using CMake. Until this PR, the compilation of the Python module was delegated by the CMake scripts to the setup.py script.

As a consequence setup.py had to address some build configurations that came from the CMake scripts options (dynamic linking and some flags settings) but this usage is beyond the "normal" scope of a setup.py script. This made setup.py more complex than it should have had to be.

This PR decouples the CMake scripts and the setup.py script as far as the Python module compilation is concerned. The script setup.py will still be generated by CMake but CMake will no longer call setup.py. Instead CMake will now uses the CMake command Python3_add_library to build the Python module and the script setup.py will only be used by our CI/CD workflow to build the Python wheels.

This change result in the deletion of 3 files (python/findModuleFileName.py, python/fpectl/fpectl_config.h.in, python/fpectl/setup.py.in) and the removal of approximately 160 lines of build scripts (including the removed files).

[codecov]

Codecov Report

Merging #866 (8a6ebac) into master (8748f38) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #866   +/-   ##
=======================================
  Coverage   23.24%   23.24%           
=======================================
  Files         167      167           
  Lines       19607    19607           
=======================================
  Hits         4557     4557           
  Misses      15050    15050           

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