COLOGNE, Germany — Escaping the brutal Russian penal system would seem like blessed deliverance to most inmates. But not to Ilya Yashin, who stunned the world last week when he angrily condemned his inclusion in a sweeping prisoner swap that freed him and a handful of other opposition figures in Russia. Instead, he portrayed it as an act of duplicity rather than a benevolent humanitarian gesture. “What happened on Aug. 1, I don’t view as a prisoner swap,” he said Friday at a news conference in B