Animate open maximize menu

Animates the following during opening:
1. Menu height to start at .8 and expand to full height.
2. Menu and menu's elements fade in.
3. Use elevation to fade shadows in.
4. Animate menu's element's y position to animate the elements to the
   correct position.
Animation Demo: http://recall/clips/11f1a05f-ccda-4e64-9be2-7bec0a049b67

Bug: 316187209
Test: Manual Testing
Change-Id: Ia45cac30c3203464a6c5315513d812d9af14f63f