Merge "Floss: Implement command completer in btclient" am: e3063627 am: fbda37a5 am: c4df75b7

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Bluetooth/+/2147703



Change-Id: I056bda79b77b26a31988a682808841245ee746b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>