XD-1029 Use Redis Endpoints from SI

Remove temporary endpoints from XD and use the versions that
are now in Spring Integration.
XD-282 overriding CDK dependency for Snappy to version 1.1.0 attempting to solve CI test issues
XD-282 limiting CDK/Avro Snappy version 1.1.0 upgrade to testRuntime
XD-282 adding runtime override for CDK/Avro Snappy version 1.1.0 for spring-xd-hadoop
Rename CompositeModuleRegistry to DelegatingMR