Place a colander in a 2-quart glass measure or medium bowl. Line colander with 4 layers of cheesecloth, allowing cheesecloth to extend over edge of bowl. Spoon the yogurt into colander. Cover loosely with plastic wrap, and refrigerate for 12 hours. Spoon yogurt cheese into a large bowl, and set aside; discard liquid.
Coat bottom of 9-inch springform pan with cooking spray. Combine granola and margarine; stir well. Press mixture into bottom of pan. Bake at 325° for 20 minutes, and let cool on a wire rack.
Add nonfat sour cream and next 4 ingredients (sour cream through Neufchâtel cheese) to the yogurt cheese, and beat at medium speed of a mixer until smooth. Add the grated lemon rind, lemon juice, 1 1/2 teaspoons of vanilla, 2 eggs, and 2 egg whites, and beat well. Spoon the cheese mixture into prepared pan. Bake at 325° for 1 hour; remove from oven.
Combine low-fat sour cream, 1 tablespoon sugar, 1 teaspoon vanilla, and 1 egg white; stir well. Spread sour cream mixture evenly over cheesecake, and return to oven; bake an additional 15 minutes. Turn off oven, and let cheesecake stand in closed oven for 1 hour. Remove cheesecake from oven; cover and chill at least 8 hours. Serve with raspberries.