In Norse mythology, Balder was the God of Light and Purity. He was said to be so beautiful that light shone from his body and flowers bowed before him as he walked past. I don’t know who his modern day equivalent is, but as I marched out of the tailor in Hoi An in my custom made suit, I was willing to bet that it was me. My last piece on Vietnam ended in Hoi An, a pleasant canal-riven town. It offers markets and ornate bridges but most importantly, it offers tailors. Custom suits, typically the preserve of Louis Copeland and his cabal, are a volume business here and you’re in…