Add sub-folder OWNERs

All of these OWNER files have `set noparent` because this project
doesn't have any cohesive ownership.

Bug: None
Change-Id: I9f7b8f03e7f27165e914fc6915bb02ef0a1d0144
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crostestutils/+/1970792
Reviewed-by: Sean Abraham <seanabraham@chromium.org>
Reviewed-by: Dhanya Ganesh <dhanyaganesh@chromium.org>
Reviewed-by: Aviv Keshet <akeshet@chromium.org>
Tested-by: Prathmesh Prabhu <pprabhu@chromium.org>
Tested-by: Sean Abraham <seanabraham@chromium.org>
Commit-Queue: Sean Abraham <seanabraham@chromium.org>
3 files changed