AIDL effect: Initial IEffect interface implementation and vts test am: 4590517a96 am: db4ff5da08 am: eb9789c77c

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2221633

Change-Id: I92781b7396424447e2768748fe05ca6274fef449
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>