Move control logic out of NotificationContentInflater

NotificationContentInflater's sole responsibility should be to provide
an API to inflate views based off the inflation parameters set on it.
Currently, this is violated by several setters that automatically
trigger inflations and its secondary role as the inflation flag source
of truth. This blurs the class's responsibility and makes it harder to
use, so we move it out.

Right now, most of this control logic simply went one level up to
ExpandableNotificationRow which realistically also isn't where it should
be ultimately. However, this is the most reasonable place for it to live
in the interim while we slowly migrate inflation/bind logic out of
ExpandableNotificaitonRow piece by piece.

Bug: 145749521
Test: atest SystemUITests
Test: smoke test
Change-Id: Ia51a6db667f0aca5b410ab7f769d061f8e9a617e