By Marc Frank and Nelson Acosta HAVANA (Reuters) – Cuba sought on Sunday to bring under control a fire at its main oil storage facility that has killed one firefighter, drawing on help from Mexico and Venezuela to fight the raging flames. A lightning strike on Friday ignited one of eight storage tanks at the Matazanas super tanker port 60 miles east of Havana. A second tank caught fire on Saturday, catching firefighters and others at the scene by surprise. Sixteen people were missing. The second explosion injured more than 100 people, many first responders, and 24 remain hospitalized, five of …