Allowing more than one app to suspend apps

We want to allow wellbeing apps to suspend in managed profiles.
This requires changing the internal data design of package-suspend
state to allow more than one suspending package, each with their
own parameters, namely - dialog info, app extras and launcher extras.

Also, removed the restriction of using setPackagesSuspendedAsUser when a
PO/DO exists

Test: atest com.android.server.pm.PackageUserStateTest
atest com.android.server.pm.PackageManagerSettingsTests
atest com.android.server.wm.ActivityStartInterceptorTest
atest GtsSuspendAppsTestCases

Bug: 138812320
Change-Id: If1263142fc9e6687e95af9b8d71ba8eff0c0fae9