Add test coverage for android.hardware.lights.LightsRequest and hide android.hardware.lights.LightsManager.LightsSession constructor.

Add core CTS test coverage for android.hardware.lights.LightsRequest
API getLights() and getLightStates().
Hide android.hardware.lights.LightsManager.LightsSession constructor.

Bug: 183239763
Bug: 183239666
Test: atest FrameworksCoreTests:InputDeviceLightsManagerTest

Change-Id: I41e0272e64a55b631eda387af0645af077d025be
3 files changed