By William Schomberg and Kylie MacLellan LONDON (Reuters) -Finance minister Jeremy Hunt said he will set out tax rises and spending cuts this week to show Britain can fix its public finances and restore its economic credibility after financial market chaos sparked by former prime minister Liz Truss. But he said poorer households should be spared much of the pain and cuts to public services would be balanced. Speaking before announcing a budget plan on Thursday, Hunt said he did not want to aggravate an expected recession but he had to show he could lower a budget deficit which has soared after…