Default subscriber QOS to BestEffort, account for TRANSIENT_LOCAL #991
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Public API Changes
Change default subscriber QosProfile from reliability=ReliabilityPolicy.RELIABLE to reliability=ReliabilityPolicy.BEST_EFFORT.
BUT if a publisher is found to have durability = DurabilityPolicy.TRANSIENT_LOCAL, then use reliability=ReliabilityPolicy.RELIABLE
Description
IMO the current "sane" defaults for a subscriber are not great for unreliable links and/or large messages and are not compatible with publisher policy is not yet known.
Relates to #769