Setup KeyguardBouncerComponent.

This removes the factory method from SystemUIFactory that built the
KeyguardBouncer and moves it into its own subcomponent. This is the
first step in removing view injection from the last keygard related
views.

Bug: 166448040
Test: manual
Change-Id: I4a682f324dcee6d506b0f286f8f61682f9777859
14 files changed