Add atom reporting for MediaCodecRendered

Since statsd doesn't allow one to create metrics off of arbitrary
indexes into repeated fields (only first, second last), the freeze
and judder scores are fabricated device-side based on configurable
tables that would mimic what we'd have on server side if statsd
supported this feature.

Bug: 234833109
Test: statsd_testdrive while playing YouTube videos
Test: atest VideoRenderQualityTracker_test
Change-Id: Ic1138abce75f0cdfa751b4adf258fe07347ed369