LONDON (Reuters) - A deputy speaker of Britain's parliament has been charged with several counts of sexual assault as well as rape, authorities said on Tuesday. Britain's Crown Prosecution Service said enough evidence had been gathered to prosecute Nigel Evans, a member of Prime Minister David Cameron's Conservative party, for eight offences. Fifty-five year old Evans, who has been the MP for Ribble Valley in Lancashire in northern England since 1992 and was arrested twice earlier this year, has denied any wrongdoing. "Lancashire Constabulary has ... ...