We’ve been singing the praises of Sri Lanka’s boutique hotels for some time now, but we’ve got to admit, this one took our breath away. Santani Wellness Resort and Spa puts together so many of the things we love about this island — the unbearably scenic landscapes of the interior, the homegrown tradition of tropical-modernist concrete architecture, and the legendarily welcoming Sri Lankan hospitality — that it might be worth a return trip all on its own. There are no half-measures. At…