DRESS CODES: Savile Row wizard Ozwald Boateng is plotting a foray into women’s wear and hinted negotiations are already under way with a big company for a launch before 2010. “Sourcing is a key component. I want the best quality,” the designer revealed at the packed Swarovski-sponsored party Tuesday night in London for hometown hero Giles Deacon. Models were atwitter about what they would wear at Naomi Campbell’s charity fashion event the next night. Singer and fashion darling Roisin Murphy had Vivienne Westwood lined up. “I am going over to her house to be dressed, so goodness knows how I will come out,” she joked.