Quantization ptq

Adding implementation of Scaling operator.

include/aidge/backend/cpu/operator/ScalingImpl.hpp

@@ -40,7 +40,7 @@ class ScalingImpl_cpu : public OperatorImpl {
     ScalingImpl_cpu(const Scaling_Op& op) : mOp(op), mNbConsumedData({0}), mNbProducedData({0}) {}
 
     static std::unique_ptr<ScalingImpl_cpu> create(const Scaling_Op& op) {
-        std::cout << "ScalingImpl_cpu create" << std::endl;
+        //std::cout << "ScalingImpl_cpu create" << std::endl;
         return std::make_unique<ScalingImpl_cpu>(op);
     }