Add elapsed time to user journey report and user lifecycle journey (from create to delete)

Bug: 272044888
Test: atest UserJourneyLoggerTest
Test: manual by running statsd_testdrive 264
Change-Id: Ie232733e7114139c57d79c5b3be022f9566beda0
1 file changed
tree: b09be22158d1c8013d379c48af3cb57bae97ae99
  1. stats/
  2. OWNERS