RFR: 8291924: jpackage: l10n for Windows context menu label

[Alex Kasko]

On Thu, 4 Aug 2022 18:10:18 GMT, Alex Kasko <akasko at openjdk.org> wrote:

> This change adds `ContextMenuCommandLabel` l10n property for file association context menu label. It is a follow-up to [this PR comment](https://github.com/openjdk/jdk/pull/9224#issuecomment-1169286082).
> 
> Note, non-EN l10n values were filled using auto-translator and may need to be corrected.
> 
> To check the contents of the label, registry query is added to `PackageTest::addHelloAppFileAssociationsVerifier`.
> 
> Testing:
> 
>  - [x] ran `FileAssociationsTest` with `install` enabled

I've updated the patch, making `queryRegistryValue` package private, removing non-EN l10n entries and adding minor enhancements to label value check.

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PR: https://git.openjdk.org/jdk/pull/9753