Release v0.2.0
@benjaminhuo benjaminhuo 发布于 2021.5.17
版本地址：v0.2.0
版本说明：
- Support OpenFunctionAsync serving runtime（backed by Dapr + KEDA + Deployment/Job)
- Functions framework supports async function now
- Customized go function framework & builders for both Knative and OpenFunctionAsync serving runtime