Example project: Saga Execution Orchestrator

I developed a Saga Pattern solution using Dapr with the Go SDK. I would like to add this to the examples project.
It is aimed at people who deploy micro services to Kubernetes and uses a number of Dapr building blocks: Pub/Sub & Poller.

Start by reviewing the repository's examples project and the Go SDK entry points used by existing examples. Define the Saga Execution Orchestrator around the stated Pub/Sub and Poller building blocks for microservices deployed to Kubernetes. Done means the example is added and demonstrates the proposed Saga flow.

Written by the indexing model from the issue text.