Add OpenRewrite's ControlFlowVisualization as optional report output or as a separate goal

[jimbethancourt]

Use this class as a starting point:
https://github.com/openrewrite/rewrite-analysis/blob/1fd8b443c519da457c1d7dc7657da4153e261724/src/main/java/org/openrewrite/analysis/controlflow/ControlFlowVisualization.java