Update TensorImpl constructor to take the tensor dimensions instead of the number of elements.

include/aidge/backend/cpu/data/TensorImpl.hpp

@@ -33,7 +33,7 @@ private:
 public:
     static constexpr const char *Backend = "cpu";
 
-    TensorImpl_cpu(DeviceIdx_t device, NbElts_t length) : TensorImpl(Backend, device, length) {}
+    TensorImpl_cpu(DeviceIdx_t device, std::vector<DimSize_t> dims) : TensorImpl(Backend, device, dims) {}
 
     bool operator==(const TensorImpl &otherImpl) const override final {
         const auto& typedOtherImpl = reinterpret_cast<const TensorImpl_cpu<T> &>(otherImpl);
@@ -47,8 +47,8 @@ public:
         return i == mNbElts;
     }
 
-    static std::shared_ptr<TensorImpl_cpu> create(DeviceIdx_t device, NbElts_t length) {
-        return std::make_shared<TensorImpl_cpu<T>>(device, length);
+    static std::shared_ptr<TensorImpl_cpu> create(DeviceIdx_t device, std::vector<DimSize_t> dims) {
+        return std::make_shared<TensorImpl_cpu<T>>(device, dims);
     }
 
     inline std::size_t scalarSize() const noexcept override final { return sizeof(T); }