Photo: Dimitrios Kambouris/Getty Images As I wait on line to enter Cipriani Wall Street, I have a goal in mind: Find out what Miranda July is wearing. July, whose second novel, All Fours , came out in the spring, is one of five authors nominated for a National Book Award for fiction this year; she’s also a Prada collaborator and will presumably show up stylishly. The dress code tonight is formal, and guests at the National Book Foundation’s 75th awards ceremony have mostly complied, wearing