It’s a good time to be in the online gaming, casino, and hotel business, it seems, as Wynn Resorts posted solid underlying numbers in their second quarter earnings before the bell on Monday.  Interestingly, Wynn’s strength was derived from Las Vegas, which helped pushed margins even higher, as the Macau operations lagged.  Rising casino revenues in the City of Sin suggest Wynn doesn’t have much to lose from Zynga, with which the company was reportedly in talks with, bowing out of online poker and gambling. Billionaire Steve Wynn is probably happy with his company’s financial performance, particularly in Vegas and…