NAIROBI, Oct 23 (Reuters) – – The following company announcements, scheduled economic indicators, debt and currency market moves and political events may affect African markets on Thursday. – – – – – EVENTS: * KENYA – The Central Bank of Kenya auctions 91-day Treasury bills worth 3 billion shillings ($33.71 million). BOTSWANA – Bank of Botswana announces latest decision on benchmark lending rate soon. The bank left its main lending rate unchanged at 7.5 percent in September. GLOB