Implement SkiaRecordingCanvas, RenderNodeDrawable, GLFunctorDrawable,
LayerDrawable, StartReorderBarrierDrawable, EndReorderBarrierDrawable.
Move AnimatedRoundRect and AnimatedCircle in a separate file.
All Skia pipeline files are moved in hwui/pipeline/skia folder.
Add unit tests for RenderNodeDrawable, StartReorderBarrierDrawable,
EndReorderBarrierDrawable and SkiaRecordingCanvas.
Test: I tested manually on 6P devices and did run the unit tests.
Change-Id: If2a347bd1fc4689953822294ce5bf98c7f3f57c7
This allows us to delete utils/NinePatchImpl.cpp and
utils/NinePatch.h
Test: Passed cts tests - DrawableTest, NinePatchTest,
NinePatchDrawableTest.
Change-Id: I6b5d09fa3479e758d8b931fa0e977c25f4435a7c
