We usually don’t write about superyachts (we generally try to keep in the 25 to 75-foot owner-operator range), but in this case, I couldn’t resist. I’ve been reading news items about Crown Prince Mohammed bin Salman of Saudi Arabia, 32, who’s trying to reform the government there, letting women drive, for example, and arresting other members of the royal family for corruption while cutting spending in an austerity program. Several stories mentioned that two years ago, while on vacation in the south of France, the prince saw a large yacht in the harbor and was so enamored of it he…