Quantization ptq

Adding implementation of Scaling operator.

src/operator/ScalingImpl.cpp

@@ -10,16 +10,14 @@
  ********************************************************************************/
 
 #include <cassert>
-#include <chrono>  // std::chrono::milliseconds
-#include <numeric> // std::accumulate
-#include <thread>  // std::this_thread::sleep_for
+#include <numeric>    // std::accumulate
+#include <functional> // std::multiplies
 
 #include "aidge/operator/Scaling.hpp"
 
 #include "aidge/backend/cpu/operator/ScalingImpl.hpp"
 #include "aidge/backend/cpu/operator/ScalingImpl_forward_kernels.hpp"
 #include "aidge/utils/Types.h"
-#include <numeric>
 #include <vector>
 
 // FIXME: replace whole Tensor with minimum needed data quantity