partially move jank tests to instrumentation based

* created an updated CtsJankTestBase class to include common
  metrics reporting tasks
* converted scrolling jank test to instrumentation based
* OpenGL jank test not converted yet due to framework issue
  with getting frame stats from SurfaceView

Change-Id: I4e33ec46eeca777b5e5fea74bd2a6df9bb998ab8
10 files changed