By FEMI SALAWU   The oil rich city of Port Harcourt stood still for Duncan Mighty as he consumated his love for fiancee, Vivien. It was a colourful affair that was witnessed today by many celebrities. Some of the celebrities at the wedding ceremony include Sammie Okposo, Phyno, Yemi Alade, Mike Ezuruonye and Patoranking. The ceremony is expected to be …