TERUEL, Spain (Reuters) - Dozens of passenger jetliners belonging to European carriers stand idled in neat lines in what has become a giant aeroplane parking lot amid the flat farmlands of eastern Spain.Teruel Airport specialises in the storage and maintenance of aircraft, and business has boomed since coronavirus lockdowns globally forced airlines across Europe to ground fleets for several weeks. No end is in sight for many.Planes showing the markings of commercial airlines including British..