CANADA STOCKS-Energy shrs lead TSX higher on central bank hopes

* Main index up 71.93 points, or 0.6 percent, at 11,852.97 * Energy stocks lead rise as China policy eyed * U.S. and European central bank action also expected By Alastair Sharp TORONTO, Aug 9 (Reuters) - Canada's benchmark equity index gained ground on Thursday, led by energy stocks, after soft Chinese economic data kept alive talk that central bankers may ease monetary policy to stimulate growth. Shares in Canadian oil and gas companies were lifted almost across the board