By John Cross It has been so long that Arsenal had almost forgotten what it feels like. But European nights do not get much better after a dramatic and nerve-shredding penalty shoot-out took Arsenal into the Champions League quarter finals for the first time since 2010. There can be no better fairytale than David Raya being crowned the hero as the Arsenal keeper made two sensational spot kick saves. What an incredible story for Raya who was hardly a popular choice when Mikel Arteta brought him in to replace Aaron Ramsdale as Arsenal’s No1 this season. But this was the night when Arsenal fans t…