Prince Harry and Meghan Markle enjoyed a tour of Nigeria last week, but one royal expert thinks the couple’s warm welcome to the country upset Prince William. “William is absolutely furious and determined to find a way to stop this happening in the future,” Tom Quinn told an outlet. “Charles is said to be angrier than anyone has ever seen him.” “What’s really upset the applecart is the fact that the Nigerians treated Meghan and Harry as if they too thought this was an official tour – all the signs were there as the couple were greeted with dances, receptions, visits to schools and charities,” …