Using ParceledListSlice to send large lists over Binder.

JobScheduler.getAllPendingJobs() and .getAllJobSnapshots() can
potentially contain enough data to exceed the Binder limit. Using a
ParceledListSlice will ensure the data can still be sent over Binder.

Bug: 70648761
Test: atest CtsJobSchedulerTestCases
Test: atest CtsBatterySavingTestCases
Change-Id: I79ea32eac56473ca996cc00312b30d0f72ce22c9