NEW DELHI (Reuters) - The BRICS group of emerging market nations voiced concern about the slow pace of reforms within the IMF in a draft summit declaration that also called for a transparent process to select the next World Bank president. The leaders of the so-called BRICS nations - Brazil, Russia, India, China and South Africa - were meeting in the Indian capital Delhi on Thursday. Promised changes to give the emerging powers greater voting rights at the International Monetary Fund have yet to be ratified by the United States, adding to frustration over reform of the G7 and the U.N. ...