In Thailand, you cannot have food or water in flight and must wear a mask. In Malaysia and Indonesia, the plane needs to be half-empty. And Australia’s Qantas Airways is giving passengers cleaning wipes but will not leave the middle seats empty.Measures to stem the spread of coronavirus have changed how people travel, with travellers, airlines and airports across Asia grappling with a hodgepodge of rules put in place during the pandemic that will make flying different in almost every country…