Add APIs to let apps attach debug info to jobs.

1. Let apps specify a specific trace tag for when their jobs are
   running.
2. Allow apps to attach some tags to a job for debugging purposes.

Bug: 293491637
Bug: 297106461
Test: atest CtsJobSchedulerTestCases:JobInfoTest
Test: atest FrameworksServicesTests:JobStoreTest
Change-Id: I7398210fc4730043f618579bad0d2e5140b912a7