Joined Cases C-487/17 to C 489/17: Judgment of the Court (Tenth Chamber) of 28 March 2019 (request for a preliminary ruling from the Corte suprema di cassazione — Italy) — Criminal proceedings against Alfonso Verlezza and Others (Reference for a preliminary ruling — Environment — Directive 2008/98/EC and Decision 2000/532/EC — Waste — Classification as hazardous waste — Waste which may be assigned codes for both hazardous waste and non-hazardous waste)