update test to perform repeat send to observe continued use of link to the anonymous-relay
finish test of anonymous producer behaviour when the anonmous-relay node is not supported, observe link attach and detach/close for repeated sends
enable deciding whether a detach frame should be responded to, as it might be a response frame we are expecting
fix session closed exception message
update tests to expect detach responses during link rejection, update implementation to send them
reduce duplication for durable subscription attach matching
update basic link flow expectation check to verify there is a handle set
expect a flow for the new subscriber, avoid race with test peer shutdown
when matching the detach as not closed, allow either the explicit false or the default false through not being present