playground: adding copyright headers and licensing files

Change-Id: Ic3c8918019359e741745a17b7bc5308b1d5a0aaa
45 files changed
tree: 0caada0e51feda8b6f1060a7a2d59a1f152dec2a
  1. client/
  2. go/
  3. pgbundle/
  4. .gitignore
  5. AUTHORS
  6. CONTRIBUTORS
  7. LICENSE
  8. PATENTS
  9. VERSION