PARIS — Picture Rick Owens thirty years ago, driving down Hollywood Boulevard in his white Mercury Comet, blasting Wagner’s “Liebestod,” Marlene Dietrich’s “Lili Marlene,” “Lights” by the Sisters of Mercy. Fast forward to Thursday afternoon in Paris, Rick’s adopted home since 2003, and “Liebestod” shook the foundations of the Palais de Tokyo as the soundtrack for his new show. He called it “Hollywood,” and it…