Add a NearbyScanRequest for requesting scan.

Currently only scan type and worksource are supported in the scan
request. More parameters will be added in the future.

Bug: 189355156
Test: atest NearbyUnitTests

Change-Id: I73d9e48865d33f5b13b29acac30eadc1a9eb9168
9 files changed
tree: 0a28c588aa157b91228ca699569e68d063c86cac
  1. nearby/