Merge "Visualizer: Add AIDL placeholder implementation and vts test cases" am: 7f62d4e5

Original change: https://android-review.googlesource.com/c/platform/hardware/interfaces/+/2352968



Change-Id: I653549649cd3b754c1310a61212c500ec4f4bb25
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>