Integrate HWUI with PerformanceHintManager

PerformanceHintManager.Session is in java, so add JNI and a HintSessionWrapper
class in HardwareRenderer. Then pass the two calls as two std::functions
into DrawFrameTask.

Note Session is created per HardwareRenderer, not global (per
RenderThread).

Session includes UI thread, render thread, and the thread pool.
Desired duration is from the intended start duration to the frame
deadline. Add an actual frame start time to compute

Add system properties:
debug.hwui.use_hint_manager to enable PerformanceHintManager
debug.hwui.target_cpu_time_percent to control percentage of frame time
  to be used for target cpu duration.

Test: Manual test that there are no crashes and values make sense.
Bug: 158791282
Change-Id: I83f25433c10daa20033803fb7c4ae45eab34f1d3