* Remove all SI test-binder based components from core spring-cloud-stream-module
* Create a new module - spring-cloud-stream-test-binder that contains the test-binder
and all it's related components
* Migrate tests from core module that use the test-binder into a separate module
called spring-cloud-stream-integration-tests
* Remove the test-jar dependency using the classifier approach
* Update Spring Cloud Stream BOM with the new test-binder dependency
* Update Schema-Registry tests that use the old approach (using the test-jar with the classifier)
with the new test-binder dependency
Resolves https://github.com/spring-cloud/spring-cloud-stream/issues/2565
