Add NearbyFrameworkInitializer and expose NearbyManager as SystemApi

Test: Built successfully
Bug: 189954300
Change-Id: I1323dc7b2fb9c91a7acf03e88f27c4029425c21d
CTS-Coverage-Bug: 213364287
9 files changed
tree: 086c2e1ef69a0f1d422e6fb54e980b2d01f53885
  1. nearby/