By Jason Hovet April 8 (Reuters) - Emerging and developing economies in Europe and Central Asia face a sharp slowdown this year under a scenario of a large but temporary rise in energy prices from the conflict in the Middle East, the World Bank said on Wednesday. The Iran war, which broke out in late February, has hit global oil supplies and sent prices soaring, lifting companies' costs and hitting people at the fuel pump. Tehran and Washington agreed a two-week ceasefire late on Tuesday.