Lenny Kravitz and Stephen Bing finished their dinner at Craft restaurant and quickly hopped into their waiting car in front of the eatery - but they didn’t drive away. “They were just sitting there in a Mercedes-Benz SUV with all the blacked-out win dows rolled up listening to startlingly loud music,” one departing diner told The Post’s Braden Keil. “The music was so loud the entire sidewalk was privy to Lenny’s new album. It was hard to imagine what it ...