By Tolu Ogunlesi They turned up, in Addis Ababa, or wherever it is that African Big Men meet these days. Africa’s departed Despots, Tyrants, Dictators, Autocrats, Maximum Rulers, Presidents for Life, call them what you will. Samuel Doe, Mobutu Sese Seko Nkuku Ngbendu wa Za Banga, Sani Abacha, Siad Barre…