Workflow Sample: Resilient, Fault-Tolerant Workflows

**Description:**
We'll need to create a program.cs file for the Resilient, Fault-Tolerant Workflows example.

For this sample, the user should be able to run a workflow, have it fail, recover (retry request/step), and have the workflow continue where it left off. All without human intervention in the retry process

**Requirements:**
- [ ] Create a [program.cs](https://github.com/dapr/dotnet-sdk/blob/master/examples/Workflow/WorkflowConsoleApp/Program.cs) file for the **Fan in & Fan out** pattern.
- [ ] program.cs file should run with the workflowConsoleApp.
- [ ] sample should walk user through target scenario identified above