TBR: third-party: Adds iOS Google Sign-In SDK 4.0.0

Currently 3.x is in the tree and is in use by the older example code.
This adds 4.0.0 which is used by the Syncbase Todos app. The older
examples will eventually migrate to 4.0.0 and remove 3.x in a separate
CL.

Change-Id: Ie70d8ea245b54fa1608d082e24125df814aa66ba
128 files changed
tree: c464d66c1d55dcba380059704d2b795730cf44da
  1. csrc/
  2. go/
  3. java/
  4. nacl_sdk/
  5. swift/
  6. .gitignore
  7. README.md
README.md

This repository contains three kinds of code used in the Vanadium project:

  1. code which originated outside of Google
  2. code which Google has released as open source
  3. Vanadium code which is derived from code that originated outside of Google, and is therefore still subject to that original code's third-party license

Most of the code under third-party is open source, though some packages have restrictive commercial licenses.

Because of Go language conventions, Go packages are found under third_party/go/src/.