* Move bubbles setting from the global table to the secure
table, this should be a per-user setting
* Update step in SettingsProvider that adds the secure
setting based on the value of the previous global, or if
the user is managed, it checks if the owner of the managed
user has a secure setting & uses the value from that to
insert the new setting.
* Adds the secure setting to the "cloned to profile"
group since it should follow the setting of the profile
owner.
* PreferencesHelper tracks this value per-user.
Bug: 173408780
Test: atest PreferencesHelperTest NotificationManagerServiceTest BubbleExtractorTest
Change-Id: I261364890fcc54fb2791e628b41c07aeddde3974
b5a783d611