Take a moment: close your eyes, sit very still, and think about your dream getaway adventure. What does it look like? Are you laying out in the hot sun with a favorite read? Spending time with friends and family you don’t normally get to see? How about backpacking through Europe via train? Your perfect trip is out there — and this may be the year you finally take it. Travel trends for 2019 show all new kinds of adventures for families, couples, and solo travelers. …