feat: Add response option to return "connection reset"

[dukeofharen]

Feature Request

Describe the Feature Request

In some situations, it might be nice to simulate a "connection reset" to simulate a network disturbance.

Describe Preferred Solution

Here is an example of how something like this might look like:

- id: connection-reset
  conditions:
    method: GET
    url:
      path:
        equals: /connection-reset
  response:
    abortConnection: true

Describe Alternatives

Related Code

Additional Context

If the feature request is approved, would you be willing to submit a PR?
Yes / No (Help can be provided if you need assistance submitting a PR)

[dukeofharen]

This can be done using .NET: dotnet/aspnetcore#21751. Apparently does not work in IIS, so we have to check that.