Allow UI jobs to run during data saver.

Since user-initiated jobs are initiated by the user and visible to the
user, similar to FGS, we allow them to run during data saver. We also
make sure not to run non-UI jobs if they would otherwise not run due to
Data Saver.

Bug: 261999509
Test: atest CtsAppTestCases:ActivityManagerFgsBgStartTest
Test: atest CtsAppTestCases:ActivityManagerProcessStateTest
Test: atest CtsAppTestCases:ActivityManagerTest
Test: atest CtsJobSchedulerTestCases:ConnectivityConstraintTest
Test: atest CtsJobSchedulerTestCases:ExpeditedJobTest
Test: atest CtsJobSchedulerTestCases:JobThrottlingTest
Test: atest CtsJobSchedulerTestCases:UserInitiatedJobTest
Test: atest FrameworksMockingServicesTests:ConnectivityControllerTest
Test: atest FrameworksServicesTests:ActivityManagerServiceTest
Change-Id: I80d5e5377a581c25220c06b7f762e9858da7769b