Merge "Add unit tests for NearbyMetrics." into tm-dev am: 26b449b432

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Nearby/+/16981201

Change-Id: I11be623fcea50a3519b3321b42dc1a62ebe5ae54
tree: 3fe7d16065eb6d2bce08fccc2f1ae5bc332fcf2a
  1. nearby/