American Masters, this week and next, is serving up a quartet of shows that food-loving cooking enthusiasts will enjoy. One new program will be paired each Friday with one related rerun, and tonight the new production is James Beard: America’s First Foodie. That title may sound like a stretch, but in TV terms, it’s absolutely and incontrovertibly accurate: His first TV series about food and food preparation, NBC’s I Love to Eat, was a 15-minute show that was shown in 1946, as o