By Manuel Jimenez SANTO DOMINGO (Reuters) – Government officials, artists and citizens on Tuesday mourned the death of Oscar de la Renta, the fashion designer who raised the profile of the Caribbean nation where he was born and which he supported throughout his life. News of de la Renta’s death from cancer late on Monday at the age of 82 dominated national newspapers and the government declared Wednesday a national day of mourning with flags to be flown at half mast. …