Move app launch x-interpolator to com.android.app.animation.Interpolators

Moving this interpolator to animationlib so that it can be used in other places.

Bug: 309618233
Flag: ACONFIG com.android.wm.shell.enable_app_pairs DEVELOPMENT
Test: Manual
Change-Id: I167de632f352d72e294c4a689373999d5b471ea4
1 file changed