He is responsible for elevating Thai cuisine to the ranks of gastronomic excellence. Ten years after leaving London, the chef David Thompson is about to reopen a restaurant in the British capital. Here’s why his return will not go unnoticed in the food world. Originally from Australia, David Thompson is a member of that select circle of chefs for whom foodies were ready to cross the planet… before the pandemic. If you’ve only just got into following food news, his name may not ring a bell. But his upcoming arrival in London will finally give you the opportunity to sample his cuisine and unde…