[#60] Add a deterministic explicit JPMS descriptor

[peter-lawrey]

Produce an explicit net.openhft.hashing module descriptor deterministically, including when Maven builds the Java-8-targeted library on Java 8. Preserve the multi-release layout, automatic module name, packaged-JAR assertions and class-path/module-path consumer projects from #107/#119.

The branch now includes develop at f06d8ecc3e8887a9d53546c1e69cdaa9b76dadb2. Resolve the overlapping #119 additions by retaining both the automatic-module-name check and the stronger Java 9 descriptor check, together with ModiTect and Invoker configuration. Original #107 history, including Benjamin Marwell's commit cdbdc5060cddb1373a86a1575445b68f1b1d08c0, remains unchanged in the ancestry.

Select the modular consumer on Java 11+ to match its --release 11 compilation target. This controls which JVMs execute that fixture; it does not raise the library's Java 8 target or the module descriptor's Java 9 class version. Apply the Actions setup repair already used by #123 so both layers use current checkout/cache/Java actions; the scanner runs on Java 21 and Sonar analysis remains enabled.

Fresh Linux amd64 validation:

• Java 8 clean verify passed: 14,901 reported unit cases, 12 existing skips, zero failures/errors. Both packaged-JAR assertions and the ordinary consumer passed; the Java-11-targeted consumer was intentionally skipped.
• Java 11 clean verify passed: two 14,901-case string configurations with 5/8 existing skips, zero failures/errors, both packaged-JAR checks and both consumer projects passed.
• JDK 9/10 were not executed. The selector excludes them from this release-11 consumer.
• Commands, raw reports and source/composition evidence are retained in the fresh-review evidence pack. The Java 11 local run preceded the workflow-only repair; Java 8 used the final head.

Ready for review of the reconciled packaging increment. #123 adds the stronger hash oracle and broader runtime matrix. Supported-platform CI and SonarCloud configuration remain merge gates. Preserve the original contribution's history when delivering this PR.

Refs #60, #107, #119.

[peter-lawrey]

@bmarwell GitHub cannot add you as a formal requested reviewer because it reports that review requests are limited to repository collaborators, but your review is warmly invited. This continuation retains your original commit and the full #107 head unchanged in its ancestry.

[bmarwell]

It is totally fine as a start