By Doina Chiacu and David Morgan WASHINGTON (Reuters) -Peter Navarro, a former top adviser to ex-President Donald Trump, has been charged with contempt of Congress for refusing to cooperate with the House of Representatives committee investigating the Jan. 6, 2021, attack on the U.S. Capitol, the Justice Department said on Friday. A federal grand jury charged Navarro with one count involving his refusal to appear for a deposition before the Jan. 6 Select Committee and another for his refusal to produce documents in response to a subpoena, the department said. Navarro did not enter a plea at hi…