GH-3233: Parquet CLI supports version command

[pan3793]

Rationale for this change

Follow the convention for the CLI tools to add a version command.

What changes are included in this PR?

As title.

Are these changes tested?

UT added, also tested manually

$ java -cp 'target/parquet-cli-1.16.0-SNAPSHOT.jar:target/dependency/*' org.apache.parquet.cli.Main version parquet-mr version 1.16.0-SNAPSHOT (build eb65987333a6bb2ae729b88eef0d6f941a7c1867)

Are there any user-facing changes?

Yes.

Closes#3233

[wgtmac]

Isn't it already displayed by the Created by line from running the meta command?

[pan3793]

@wgtmac it's a different thing, Created by represents the version of Parquet lib used to write the Parquet file, while this command prints the Parquet CLI tool's version.

[wgtmac]

Ah, thanks for the clarification! Since this is a parameter for the tool itself, what about following style of the help command like below? Perhaps we need to add alias -v, -version and --version.

jc.addCommand("help", help, "-h", "-help", "--help");

[pan3793]

@wgtmac-v is already used by --verbose, I added aliases -version, --version

[nandorKollar]

nit: probably doesn't matter much, but other commands without examples return empty array list instead of null (Lists.newArrayList() or maybe even better Collections.EMPTY_LIST)

[pan3793]

Thanks for taking a look, I copied it from Help#getExamples. Anyway, avoiding NULL propagation is generally a good idea, let me update both.

[nandorKollar]

LGTM