[Proposal] Add IServiceScope support so that steps can get same service instances from this scope

**Is your feature request related to a problem? Please describe.**

I have a scoped service `IMyService` and get an `IMyService` instance from a scope, I hope that all steps will obtain the same `IMyService` instance when the workflow is running. This can prevent the services between multiple workflows from interfering with each other.

**Describe the solution you'd like**

Add a method to `IWorkflowController` called `StartWorkflowWithScope`, which accept an additional parameter `IServiceScope`, and then save it in `WorkflowInstance`

**Describe alternatives you've considered**

None

**Additional context**

I would like to make a pull request for this.