CLEMENT ROSSIGNOL and Robin EMMOTT AN Iranian diplomat accused of planning to bomb a meeting of an exiled opposition group was sentenced to 20 years in prison yesterday, in the first trial of an Iranian official for suspected terrorism in Europe since Iran's 1979 revolution. Asadollah Asadi was found guilty of attempted terrorism after a foiled plot to bomb a rally of the National Council of Resistance of Iran (NCRI) near Paris in June 2018, Belgian prosecution lawyers and civil parties to the prosecution said. The third counsellor at Iran's embassy in Vienna, he was arrested in Germany before being…