By THÉRÈSE MARGOLIS Former Petróleos Mexicanos (Pemex) Director Emilio Lozoya — who is supposed to be under house arrest while awaiting a trial for alleged embezzling and corruption — was photographed on Saturday, Oct. 9, dining at the upscale Hunan Chinese restaurant in Mexico City’s posh Colonia Lomas de Chapultepec. The photographs, taken by columnist Lourdes Mendoza of El Financiero