By Crispian Balmer and Humeyra Pamuk MATERA, Italy (Reuters) - G20 foreign ministers called on Tuesday for multilateral cures for global crises like the COVID-19 pandemic and climate emergency at their first face-to-face meeting in two years. The one-day gathering in the heat-soaked southern city of Matera focused on how to improve cooperation and revive the world's economy following the pandemic and how to boost sustainable development in Africa. "The pandemic has highlighted the need for an international response to emergencies that transcend national boundaries," Italian Foreign Minister Lu...