BATE FELIX and NGOUDA DIONE OVER 10,000 supporters of Senegalese opposition leader Ousmane Sonko massed at a field in the capital Dakar on Tuesday, the first of three days of planned protests in support of the aspiring presidential candidate, who faces a libel case set to resume this week. The demonstrations are the latest expression of growing tensions in Senegal in the run-up to a 2024 election that could see President Macky Sall vie for a controversial third term, which the opposition says is unconstitutional. Sall, 61, has neither confirmed nor denied that he plans to run, amid widespread speculation.…