A general view of the Royal Courts of Justice, more commonly known as the High Court, in London, Britain, November 2, 2020. REUTERS/Toby Melville/File Photo Purchase Licensing Rights, opens new tabLONDON, Aug 11 (Reuters) - The operator of Wikipedia on Monday lost a legal challenge to parts of Britain's Online Safety Act, which sets tough new requirements for online platforms and has been criticised for potentially curtailing free speech.The Wikimedia Foundation took legal action at London's Hig...