RewindBuffer: Implement a stub `recordListen` function
RewindBuffer: Implement a stub `recordListen` function

We have a test that creates a Rewinder object using just a RewindBuffer.
It later throws an exception if tests are still running because
the RewindBuffer doesn't have `recordListen`.

SCPR/StreamMachine,StreamMachine/StreamMachine,cdgraff/StreamMachine,pedropapa/StreamMachine,pedropapa/StreamMachine,pteich/StreamMachine,SCPR/StreamMachine,pteich/StreamMachine,StreamMachine/StreamMachine,cdgraff/StreamMachine