From Wall Street Journal Macau mogul Lawrence Ho is set to become Russia’s first well-known casino operator, as China’s northern neighbor enters the fray competing for the Asian high rollers who made Macau the world’s gambling capital. A company controlled by Mr. Ho signed an agreement to open a casino on the outskirts of Vladivostok, a person familiar with the deal said. The planned casino-resort in Primorye—a vast eastern region bordering China and Korea—is scheduled to open in the second half of next year. It will be one of the first in Russia after the country in 2009 banned casino…