Until recently, kitchen and bathroom faucets were all chrome and all business. No longer. They have become an important part of the decor and boast new functions, shapes, and colors. Properly known as decorative plumbing brass, these new faucets, many of them imported from Europe, have caught the imagination of designers and clients. Fully 50 percent of my business includes these upscale faucets. But with them come problems you don't have to face with old chrome standbys like Delta or Moen. These surprises can be nasty, and they seem to increase with the price of the faucet. Getting to Know You One of the Twelve Commandments of Remodeling is "Thou shalt not start the job until all materials are in hand." This