[IMPR][MAJ] More precise type system

Adding data types in order to clarify usages and reduce conversion errors / arguments mismatch.

already in !13 (closed)

include/aidge/operator/Slice.hpp

@@ -94,9 +94,9 @@ public:
  * @param name Name of the Operator.
  * @return std::shared_ptr<Node> A Node containing the Operator.
  */
-inline std::shared_ptr<Node> Slice(const std::vector<std::int32_t> const& starts,
-                                   const std::vector<std::int32_t> const& ends,
-                                   const std::vector<std::int32_t> const& axes,
+inline std::shared_ptr<Node> Slice(const std::vector<std::int32_t> & starts,
+                                   const std::vector<std::int32_t> & ends,
+                                   const std::vector<std::int32_t> & axes,
                                    const std::string &name = "") {
     // FIXME: properly handle default w&b initialization in every cases
     return std::make_shared<Node>(std::make_shared<Slice_Op>(starts, ends, axes), name);