LIN TAYLOR  REALITY television star, entrepreneur and now self-made billionaire - Kim Kardashian has for the first time been included on Forbes magazine’s list of the world’s billionaires. Forbes said it estimated that Kardashian, 40, "is now worth $1 billion, up from $780 million in October, thanks to two lucrative businesses - KKW and Skims - as well as cash from reality television and endorsement deals, and a number of smaller investments." In February, Whitney Wolfe Herd became the youngest female self-made billionaire after shares of her company, the dating app Bumble, made their stock market debut. The 31-year-old founder…