From Cyrano de Bergerac to “the nose knows,” our olfactory organs long have been telling us they shouldn’t be regarded as the Rodney Dangerfield of the senses. Now, a bevy of tech startups is emphasizing the crucial nature of olfactory capabilities by harnessing the biology of smells to boost success in the development of foods, beverages, and fragrances, and the ingredients in all of those. There are other applications, including in disease diagnosis, drug detection, and bomb …