[ServiceBus] Ensure autolockreceiver halts session renewal on volntary close, determine if desired for messages.

[KieranBrantnerMagee]

AutoLockRenew doesn't appear to halt itself when a session is closed voluntarily.

This probably applies to normal receivers via message renewal as well? But what about our 'fallback' mechanism to allow settlement even after close. Determine if we want this as well, but the former item is certainly desired.

Normal process, implement, tests, document etc.

[rakshith91]

Unable to reproduce this - however this would need a validation.
Having a full integration test for "renewer halts properly when session receiver shuts down" may be worthwhile.

[yunhaoling]

writing a test case for this