More equipment is being readied to contain an oil spill from a ship which ran aground and started to break apart in stormy weather on South Africa's west coast, although there are no signs of affected wildlife yet, authorities said on Monday.Rough sea swells have battered the Panama-flagged general cargo vessel "Ultra Galaxy" since it drifted onto a sand bank three weeks ago close to Doring Bay, some 300 km (186 miles) north of Cape Town, after the ship's crew abandoned the vessel…