NEW YORK - New York’s attorney general sued the National Rifle Association on Thursday, seeking to put the powerful gun advocacy organization out of business over allegations that high-ranking executives diverted millions of dollars for lavish personal trips, no-show contracts for associates and other questionable expenditures.Attorney General Letitia James’ lawsuit, filed in state court in Manhattan after an 18-month investigation, highlighted misspending and self-dealing allegations that have roiled the NRA and its longtime leader, Wayne LaPierre, in recent years — from hair and makeup for his wife to a $17 million post-employment contract for himself.The troubles, which James said were long cloaked by loyal lieutenants and a pass-through.