They have long been called the world’s worst football team. Up until last week, they had gone on a 20-year, 140-game winless streak – during which the Germans thrashed them 13-0 on one occasion. So why have I spent thousands of pounds following them around Europe? Good question. To be honest, being there for the moment when San Marino finally claimed victory has been something of an obsession for this Kent-based reporter. And last Thursday I joined the 900-or-so-strong crowd at the Stadio Olimpico di Serravalle to witness history in the making. It was a true clash of the titans as San Marino, …