By Emma Farge and Philip Blenkinsop GENEVA (Reuters) -Britain, one of the main opponents to waiving intellectual property rights for COVID-19 vaccines, praised a draft agreement and expressed hope a deal would be reached at the World Trade Organization (WTO) this week. India, South Africa and other developing countries have sought a waiver of IP rights for vaccines, treatments and diagnostics for over a year, but faced opposition from countries with major pharmaceutical producers, such as the United Kingdom and Switzerland. A provisional deal between major parties – India, South Africa, the Un…