Add library names to many sky libraries

sky/sdk/lib/framework/animation/curves.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+library animation_curves;
+
 double _evaluateCubic(double a, double b, double m) {
   // TODO(abarth): Would Math.pow be faster?
   return 3 * a * (1 - m) * (1 - m) * m + 3 * b * (1 - m) * m * m + m * m * m;
 }
 
 const double _kCubicErrorBound = 0.001;
 
 abstract class Curve {
   double transform(double t);
 }
@@ skipping 48 matching lines @@
   }
 }
 
 const Linear linear = const Linear();
 const Cubic ease = const Cubic(0.25, 0.1, 0.25, 1.0);
 const Cubic easeIn = const Cubic(0.42, 0.0, 1.0, 1.0);
 const Cubic easeOut = const Cubic(0.0, 0.0, 0.58, 1.0);
 const Cubic easeInOut = const Cubic(0.42, 0.0, 0.58, 1.0);
 const ParabolicRise parabolicRise = const ParabolicRise();
 const ParabolicFall parabolicFall = const ParabolicFall();