SYDNEY (Reuters) - Asian share markets pushed higher on Monday as signs of progress in the Sino-U.S. trade standoff whetted risk appetites, while pressuring safe-haven bonds and the yen.Liquidity was lacking, however, with Japan off and a partial market holiday in the United States for Columbus Day. MSCI's broadest index of Asia-Pacific shares outside Japan edged up 0.5%.Australia's main index gained 0.9% and South Korea firmed 1.3%. While Tokyo was on holiday, Nikkei futures were trading at..