edit: Operator.hpp: remove inlining as only in std17

include/aidge/operator/Operator.hpp

@@ -68,7 +68,7 @@ enum class InputCategory : unsigned int {
     All = static_cast<unsigned int>(-1)
 };
 template <>
-inline constexpr bool enable_bitmask_operators<InputCategory> = true;
+constexpr bool enable_bitmask_operators<InputCategory> = true;
 
 /**
  * @class Operator