By LOUAI BESHARA / AFP One whiff of a fragrance is all Syrian perfumer Mohammad al-Masri needs to recreate the scent of a luxury brand — without the label and for a fraction of the cost. One whiff of a fragrance is all Syrian perfumer Mohammad al-Masri needs to recreate the scent of a luxury brand — without the label and for a fraction of the cost. Dozens of customers flock daily to his tiny store, nestled in the historic market of Damascus’s old city, many flashing photos on their phones of high-end perfumes they want to replicate. “All I have is my shop, and this nose I’ve been training si…