Resolve "Arithmetic Operator optimization"

Closes #5

• Add
• And
• BitShift
• Div
• Equal
• Mul
• Pow
• Sub

Here is the comparison of performances for Add operator in percents (%). It is representative of perfomance gains for other elementwise operators.

Default size of both inputs was [64,64,64,64]

I also changed Catch2 version from 3.0.1 to 3.7.1

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

@@ -12,18 +12,21 @@
 #ifndef AIDGE_CPU_OPERATOR_POWIMPL_H_
 #define AIDGE_CPU_OPERATOR_POWIMPL_H_
 
+#include <cstddef>  // std::size_t
+#include <memory>   // std::unique_ptr, std::make_unique
+#include <string>
+#include <vector>
+
 #include "aidge/backend/cpu/operator/OperatorImpl.hpp"
 #include "aidge/operator/Pow.hpp"
 #include "aidge/utils/Registrar.hpp"
 #include "aidge/utils/Types.h"
-#include "aidge/backend/cpu/data/GetCPUPtr.h"
-#include <memory>
-#include <vector>
+
 
 namespace Aidge {
 // Operator implementation entry point for the backend
 using PowImpl_cpu = OperatorImpl_cpu<Pow_Op,
-    void(const std::vector<std::size_t>&, const std::vector<std::size_t>&, const std::vector<std::size_t>&, const void*, const void*,void*),
+    void(std::vector<std::size_t>, std::vector<std::size_t>, const std::vector<std::size_t>&, const void*, const void*, void*),
     void(const std::vector<std::size_t>&, const std::vector<std::size_t>&, const std::vector<std::size_t>&, const void*, const void*, const void*, void*, void*)>;