Add BUILD.gn, OWNERS and README.webrtc

This is needed to be able to DEPS in the entirety of
winsdk_samples into WebRTC when we move away from
symlinks.

BUG=webrtc:5006
R=charujain@webrtc.org

Review-Url: https://codereview.webrtc.org/2573073002 .
3 files changed
tree: d4a4e8b86de916b20ff1fc36843b655be33c1e8b
  1. BUILD.gn
  2. License/
  3. OWNERS
  4. README.webrtc
  5. Samples/
  6. codereview.settings