Agent - 1.0.0

## [1.0.0] - March 26th, 2020 - Update documentation and examples - Add response body for override and track - Add userId in /activate response - Require userId in /activate request - Add python integration test suite - Add route handler and serve /openapi.yaml - Improve logging from the SDK

https://github.com/optimizely/agent/releases/tag/v1.0.0