Create HeadsUpInteractor backed by HeadsUpManager

Fixes: 328390331
Test: atest NotificationListViewModelTest
HeadsUpNotificationInteractorTest SceneContainerStartableTest
Flag: ACONFIG com.android.systemui.notifications_heads_up_refactor DEVELOPMENT

Change-Id: I76d466cff68c71a489a0d5b4ad82eb90563b464c
25 files changed