By Amanda Cooper LONDON (Reuters) -Global stocks bounced on Monday, while safe-haven gold and bonds retreated, as signs of cooling trade tensions between China and the U.S. encouraged investors, marking a strong start to a week dominated by central bank meetings and megacap earnings. Top Chinese and U.S. economic officials on Sunday hashed out the framework of a trade deal for U.S. President Donald Trump and his Chinese counterpart Xi Jinping to decide on later this week at a meeting in South Korea. A t ...