Now, he’s occupying a jail cell. A drug dealer was busted trying to peddle cocaine last night to Occupy Wall Street protesters in Zuccotti Park, The Post has learned. Garfield Leslie, 19, began brawling with three protestors who had told him to leave their tent when he wandered in at around 8 p.m. and tried to sell small plastic baggies of cocaine, police sources said. Leslie first punched a woman several times and then turned his fists on a guy who intervened, sources said. When another woman tried to stop the scuffle, Leslie allegedly hit her so hard in the...