Hard as it is to be shadowed through life by a famous ancestor, it's even harder to compete with an egg. Tatyana Faberge, great-granddaughter of Russian jeweler Carl Faberge, craftsman of the legendary Imperial Easter eggs, lives in the shadow of his creations. ""Everybody is into eggs. But I must tell you, there are other things in life,"" Faberg? said wryly. Jewelry, for instance. In a bid to revive Russian interest in creative jewelry, Faberge, herself a designer of jeweled boxes and picture frames, is setting up a foundation in Moscow that will work with students interested in becoming jewelers and serve as a place to exchange knowledge for professionals. The organization, tentatively named the Carl Faberge Memorial Foundation for the Revival of Russian Jewelry and Decorative Arts, has already set up talks with two schools in Moscow and St. Petersburg about training programs.