[MAJ][TBV] replacing unique_tr by shared_ptr for Tensor implementation pointer

include/aidge/data/Tensor.hpp

@@ -38,19 +38,7 @@ namespace detail
 {
 namespace pimpl
 {
-/// @brief  actual implementation of the deleter
-/// @internal
-void DeleteImpl(TensorImpl *pImpl) noexcept;
-/// @brief  Implementation deleter
-/// @internal
-struct SImplDeleter
-{
-    void operator()(TensorImpl *pImpl) const noexcept
-    {
-        DeleteImpl(pImpl);
-    }
-};
-using ImplPtr_t = std::unique_ptr<TensorImpl, SImplDeleter>;
+using ImplPtr_t = std::shared_ptr<TensorImpl>;
 } // namespace pimpl
 
 /// @brief Check if a valid area is included in another one.

src/data/Tensor.cpp

@@ -14,12 +14,6 @@
 
 namespace Aidge
 {
-/// @brief  actual implementation of the deleter
-void detail::pimpl::DeleteImpl(TensorImpl *pImpl) noexcept
-{
-    delete pImpl;
-}
-
 /// @brief Check if a valid area is included in another one.
 bool detail::IsSubTensorIncluded(
     std::vector<Coord_t> const &i_SubFirstDataLogicalCoordinates,