check CDC compatibility with Debezium Oracle connector events

[hpgrahsl]

Debezium introduced at least preliminary/preview support in the 0.8 release, see:

• http://debezium.io/blog/2018/07/12/debezium-0-8-0-final-released/
• http://debezium.io/docs/connectors/oracle/

Setup a running local Oracle (XStream) environment to test compatibility with the current CDC events. The following links should be helpful:

• https://github.com/debezium/oracle-vagrant-box
• https://github.com/debezium/debezium-examples/tree/master/tutorial#using-oracle