The African continent is currently one of the fastest-growing regions when it comes to mobile growth, and financial technology companies that are building services to meet that rapidly-expanding market are getting a lot of attention. In the latest development, Kuda, a startup out of Nigeria that operates a popular mobile-first challenger bank for consumers and (soon) small businesses, is announcing that it has raised $10 million — the biggest seed round ever to be raised in Africa. The funding comes on the back of strong demand for its services and…