CHÂTEAU DE VERSAILLES — “You can’t just rent Versailles, you start a relationship,” said Simon Porte Jacquemus, who today joined the rarified club of fashion designers to have presented a collection on the grounds of the historically charged French palace. Entitled “Le Chouchou,” the outing was the result of a year-long negotiation to achieve Jacquemus’ dream scenario: guests watched a parade of autumn looks from a flotilla of…