Add support for capturing request / response details and verifications performed

[basdijkstra]

For reporting / logging purposes, it would be great if RestAssured .Net kept track of details about the requests it made, the responses it received and the verifications that were performed.

Ideally what will be captured can be configured globally / statically to keep the impact on writing actual tests low.

[basdijkstra]

Idea: Create an IEnumerable of objects storing request, response and verifications per test, allow users to inject that into a test through an overload to Given() or through a RequestSpecification so user can control the lifecycle of the object themselves and provide examples of usage.