A Thai tycoon accused of poaching wildlife in a national park has been given three-year, two-month prison sentence after losing his final appeal in the long-running saga that drew public outrage over the elite’s perceived impunity.Thailand’s Supreme Court on Wednesday affirmed the sentence for construction magnate Premchai Karnasuta for the poaching incident in which a black panther was shot and cooked over a campfire.Premchai is president of Italian-Thai Development PLC, one of the country’s…