Quantization Refactoring

Post Training Quantization implementation in C++, Python bindings, and tutorial for the AIDGE PTQ

• C++ related developements
  • Complete refactoring of the existing C++ code
  • Add a routine for computing the activation ranges
  • Add a routine for checking the graph architecture before the PTQ
• Python related developements
  • Refactoring of the Pybind wrapper
  • Writing of a script for testing the AIDGE PTQ