Tencent Holdings Ltd.’s Dungeon & Fighter Mobile more than doubled the sales of longstanding Chinese best-seller Honor of Kings in its first month, according to independent research, suggesting the online entertainment leader may have finally found a marquee franchise to replace aging titles.The Nexon Co.-produced title brought in $270 million on iOS in the 30 days after its launch on May 21, taking the top spot in both downloads and revenue in the country, data released by industry tracker Sens...