A member of the Netherlands’ Olympic beach volleyball team served more than a year in prison for raping a 12-year-old girl in Britain — sparking outrage and demands to belatedly ban him from the Paris Games. Steven van de Velde, 29, who qualified for the global competition last month, was allowed to represent his country “after an intensive professionally supervised process” of rehabilitation, according to the Dutch Olympic committee. But his scheduled Sunday debut led the head of Australia’s team, former champion cyclist Anna Meares, to say he would have been disqualified Down Under. “If an a…