LONDON (Reuters) – Paula Vennells, the former chief executive of Britain’s Post Office, said on Tuesday she would hand back a national honour after mounting public anger over the wrongful conviction of hundreds of sub-postmasters on her watch. More than 1.2 million people signed a petition demanding that the honour, which was awarded in 2019 for services to the Post office and to charity, should be rescinded following a TV dramatisation of the miscarriage of justice last week. “I continue to support and focus on co-operating with the Inquiry and expect to be giving evidence in the coming month…