ALBANY — The New York State Rifle & Pistol Association has filed a federal lawsuit challenging the constitutionality of state regulations that prohibit many gun owners from carrying their firearms in public areas without judicial authorization.Buoyed by a recent federal appeals court decision that dismantled strict gun-control laws in the District of Columbia, the lawsuit filed in Albany this week seeks to open up a court challenge on whether constitutional rights under the Second Amendment extend beyond the home.