veyron/runtimes/google/security/caveat: Do not export PublicKeyCaveat and PublicKeyDischarge types.

And reduce file-spread of the package.

Change-Id: I7e2c55ac074d16cdf5ebb81d7229536c1af929c7
4 files changed
tree: d88048e28cec692f02cc841b57003636340807c6
  1. examples/
  2. lib/
  3. runtimes/
  4. security/
  5. services/
  6. tools/