Add JavaIO and CSV example #472

Job	Run time
Java tests (swift:6.0.2 jdk:Corretto os:jammy)	7m 30s
Swift tests (swift:6.0.2 jdk:Corretto os:jammy)	4m 30s
Verify Samples (swift:6.0.2 jdk:Corretto os:jammy)	17m 29s
soundness / API breakage check	0s
soundness / Documentation check	34s
soundness / Unacceptable language check	3s
soundness / License headers check	6s
soundness / Broken symlinks check	3s
soundness / Format check	0s
soundness / Shell check	35s
soundness / YAML lint check	3s
soundness / Python lint check	6s
	30m 59s

Provide feedback