Enhancement : Quantizer only PTQ

See merge request !50

Update gitlabci to use previously defined beofre_script and update gitignore to remove quantization_version.h

# Conflicts:
#   aidge_quantization/unit_tests/test_ptq.py
#   include/aidge/operator/PTQMetaOps.hpp
#   include/aidge/quantization/PTQ/PTQ.hpp
#   python_binding/pybind_PTQ.cpp
#   src/PTQ/PTQ.cpp
#   src/operator/PTQMetaOps.cpp

Update Pybind 2.10.4 -> 2.13.6

See merge request !51

Real quantization cast for PTQ

See merge request !46

Add support for the MatMul operator

See merge request !45

# Conflicts:
#   src/PTQ/PTQ.cpp