refactor: remove redundant code from V2 tests and redundant V2 conditionals
red: add BeforeAfterTestFeature to v2
green: add BeforeAfterTestFeature to v2
refactor: rename invoker, invoker methods and test runner methods
ensure capture of teardowns in StepRunner
address CA warnings
refactor: address CA warnings in tests
refactor: minor tidy up
refactor: minor tidy up of tests
Merge pull request #198 from adamralph/51

add BeforeAfterTestFeature to v2