Add RoleControllerManager.isApplicationVisibleForRole().

Settings doesn't actually need to know whether an application
qualifies for a role, but only whether the default app setting should
be visible for an application. Qualification and visibility differs in
cases such as FallbackHome inside Settings which is a qualifying home
activity but should never be shown in default apps UI.

Fixes: 138636320
Test: manual
Change-Id: I216195c64a7b106e2769b11c1a998741a77fdce2