By Karolina Tagaris NICOSIA (Reuters) - Cyprus's central bank confirmed on Monday it will extend an inquiry into the banking crisis that has crippled the island to fully cover Cyprus Popular Bank, nationalized last year because of heavy losses from Greece. A central bank-commissioned probe leaked last week made reference to Popular's purchase of Greek government bonds, while focusing on the island's largest commercial bank, Bank of Cyprus. Central Bank of Cyprus Governor Panicos Demetriades told lawmakers on Monday the inquiry would move on to Popular and its Greek bond buys. ...