Project: springxd
Issue XD-3344: Implement undeploy operation for singlenode SPI 
As a s-c-d developer, I'd like to implement _undeploy_ operation for {{singlenode}} (single JVM), so I can use this target to undeploy a running stream. More details in [this PR|https://github.com/spring-cloud/spring-cloud-data/pull/19]. *Note:* Its a prerequisite to determine consistent _undeploy_ strategy for both {{jobs}} and {{streams}}.
Story points: 8