By Gabriela Baczynska BRUSSELS (Reuters) -The European Union’s chief executive voiced confidence on Wednesday that all 27 member states will agree to extend more financial aid to Ukraine, overcoming Hungary’s opposition and fulfilling a promise to Kyiv. Hungary opposes a proposal to grant Ukraine 50 billion euros ($54 bln) from the EU’s joint budget, raising the possibility of the other 26 countries sending funds under bilateral deals with Kyiv. But Ursula von der Leyen, who heads the EU’s executive European Commission, told European Parliament: “I am confident that we will find a solution by …