Refactor pre-created user app permission test Use proto to check each user's package permissions Bug: 167454361 Test: m cts && atest PackageIncidentTest m CtsCarHostTestCases && cts-tradefed run cts-dev -m CtsCarHostTestCases -t android.car.cts.PreCreateUsersHostTest Change-Id: Ibd2a3a4ce4cca7978ddb0ef9358b811e5029083d