Swipe interaction changes on home screen

> Increasing the distance to travel for the first swipe
> Adding support for custom interpolators when building an animation
> When quickly swiping twice from home, finished the first animation

Change-Id: Ibc3c8667e9b927376fd99f08f0ca027f2398914b

quickstep/src/com/android/launcher3/uioverrides/OverviewState.java

@@ -58,7 +58,7 @@ public class OverviewState extends LauncherState {
     }
 
     @Override
-    public float getOverviewTranslationX(Launcher launcher) {
+    public float getOverviewTranslationFactor(Launcher launcher) {
         return 0;
     }