Bloomberg – Las Vegas Sands Corp. (LVS) and MGM Resorts International (MGM) are scouting sites for casinos in Japan as Tokyo’s selection to host the 2020 Olympics boosts confidence a law legalizing gambling resorts in the capital will pass. The International Olympic Committee’s decision fueled speculation Japan will approve casino gambling since the development would add hotel capacity and entertainment venues that could be used during the games. Casinos would also add jobs and draw about $10 billion in sales to bolster the economy. Tokyo’s potential as a gambling market is also drawing the interest of Caesars Entertainment Corp. (CZR)…