* Improve Java DSL for Rabbit Streams
* Expose simple properties for `streamName` and `superStream`
on the `RabbitStreamInboundChannelAdapterSpec`
* Add `superStream(String superStream, String name, int consumers)` option
* Add `outboundStreamAdapter(Environment environment, String streamName)` factory for
simple use-cases
* Add `RabbitStreamTests` integration test to cover Rabbit Streams support
and demonstrate respective Java DSL
* Mention the change in the docs
* * Fix typos in code and docs
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