Reduce individual quota alarms set.

Switch QuotaController to track all of the pending in quota alarms
internally and only set one alarm for the whole group.

Bug: 150156067
Test: atest CountQuotaTrackerTest
Test: atest CtsJobSchedulerTestCases
Test: atest QuotaControllerTest
Change-Id: Ie415ed0c4f224ac8c37110962009c310e6a6a051
4 files changed