Add extra permissions to CalendarProvider.

Per requirement of cross profile calendar feature, CalendarProvider will
need MANAGE_USER to get work profile user, and INTERACT_WITH_USER to
access its work profile equivalent.

Personal CalendarProvider needs to get the corp user ID, so it needs to
call userManager.getUsers() which requires
{@link android.Manifest.permission#MANAGE_USERS} permission.

We'll maintain a whitelist of packages set by DPC that are granted access
to cross profile Uris in CalendarProvider, so random personal apps
won't be able to access those Uris.

Bug: 118456304
Test: manual
Change-Id: I59e4a7f39f9abc69f0dcc7ff03d822b8d44b4dbc