RFR: 8293499: Provide jmod --compress option

[Aleksey Shipilev]

On Mon, 12 Sep 2022 15:51:25 GMT, Mark Reinhold <mr at openjdk.org> wrote:

> Agreed. With this approach we can also revise `jlink --compress` to take the same arguments, keeping `[012]` for compatibility. We can also name this option `--compress` for `jmod`, rather than `--compression-level`, for consistency.

I updated this PR and related CSR with this new option format.

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PR: https://git.openjdk.org/jdk/pull/10213