Cascade animation of users in switcher.

- Adds animations of user pods, page indicator, and username in user switcher.
- Adds delay between user pods to add cascading effect.

Bug: 36812644
Bug: 65423882

Change-Id: I369719d1d692c5b7414d33801007854d522882d8
(cherry picked from commit ca567d817f75da0bcfd5de29a33ded00bc737985)
diff --git a/packages/SystemUI/res/values/integers_car.xml b/packages/SystemUI/res/values/integers_car.xml
index 320ee9f..f84dd4b 100644
--- a/packages/SystemUI/res/values/integers_car.xml
+++ b/packages/SystemUI/res/values/integers_car.xml
@@ -19,4 +19,5 @@
     <integer name="car_user_switcher_timeout_ms">15000</integer>
     <!-- This values less than ProgressBar.PROGRESS_ANIM_DURATION for a smooth animation. -->
     <integer name="car_user_switcher_anim_update_ms">60</integer>
+    <integer name="car_user_switcher_anim_cascade_delay_ms">27</integer>
 </resources>