add an implementation of python-style events

This is another synchronization primitive. It will be used in a couple
of extra tests coming right after this.

Change-Id: I536f04f0b5f4f87a0c0a4c8e531c526c7a56bb49
5 files changed
tree: 3f65c3a8520ae2877575a36472beb931a1ae5a1c
  1. aos/
  2. doc/
  3. frc971/
  4. output/
  5. vision/
  6. .clang-format
  7. .gitignore
  8. README.txt