init: Add ownership files

Adds the minimal amount of files needed to include this project
in repo manifests.

BUG=b:329304120
TEST=None

Change-Id: I5ad0d39bbbe1024dd506f2c588e1ca890076edb2
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/btpeerd/+/5398523
Reviewed-by: Jason Stanko <jstanko@google.com>
Commit-Queue: Jason Stanko <jstanko@google.com>
Auto-Submit: Jared Bennett <jaredbennett@google.com>
Tested-by: Jared Bennett <jaredbennett@google.com>