Adds most remaining framework metrics

Adds nearly all of the remaining specified framework level metrics.
Also adds a basic unit test to verify that metrics are exported
correctly. A follow-up CL will update the CTS test to touch all metric
values in DrmHal.

BUG: 64001676
Test: New unit test. Smoke tested with GPlay/Walleye.
Change-Id: I4df90675ae304d3c62b7886537328b3d848fd77c