* Remove `ownConnection` feature from RabbitMQ modules.
It does not bring too much value over Spring Boot config.
Plus no one else modules tries to mimic such a behavior.
So, fully rely on Spring Boot auto-configuration for RabbitMQ as well.
* Add `spring-` prefix to function names
Fixes: #9
This commit renames each sub-module in the common, consumer, function
and supplier groups with a prefix of `spring-`.
* Update README.adoc links to new prefixed names