The Michelin-starred, entrepreneurial chef Tim Raue offers diners in Berlin die Qual der Wahl — an embarrassment of culinary riches. His flagship establishment — Tim Raue at 26 Rudi-Dutschke-Strasse — features Raue’s uniquely-developed Asian-fusion cuisine, in which elements of Japanese, Chinese and Thai traditions are inflected with a lovely European accent. Sra Bua — the…