Update systemui animations to GM2.

- Update wifi, bluetooth and hotspot transient animations for pixel and
3 themes
- Move animations from SystemUI to framework so they can be overlayed
(resources cannot reference other resources that only exist in the
target package)
- Remove unused animations
- Holding off on themed lockscreen animations until they are all
complete
- Note that expand/collapse animations are not overlayed since they are
not used in production code (only tuner)

Fixes: 118757654
Test: visual
Change-Id: Id66a2f76ff1f46b2e32f61b709b648aa0fa49672