RFR: 8365491: VSCode IDE: add basic configuration for the Oracle Java extension [v3]

[Jan Lahoda]

On Fri, 15 Aug 2025 06:36:46 GMT, Manuel Hässig <mhaessig at openjdk.org> wrote:

>> This PR adds a basic configuration for the [Oracle Java VSCode extension](https://marketplace.visualstudio.com/items?itemName=Oracle.oracle-java) to the `vscode-project-*` targets.
>
> Manuel Hässig has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Enable nbjavac

Thanks, @mhaessig!

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Marked as reviewed by jlahoda (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/26759#pullrequestreview-3123264543