By Stella Qiu SYDNEY (Reuters) -Japanese shares surged to fresh 34-year highs and the yen gave ground on Tuesday as the Bank of Japan stood pat on ultra-loose monetary policy, while Chinese stocks got a temporary lift from a report of a huge market rescue package. Japan’s Nikkei rose 1% to the highest level since February 1990, bringing year-to-date gains to 10.3%. The MSCI’s broadest index of Asia-Pacific shares outside Japan was up 0.5%, driven by a 1.8% jump in Hong Kong’s Hang Seng index Bloomberg reported Chinese authorities are seeking to mobilize about 2 trillion yuan ($278 billion) to …