Add array support for `VERSION_NEUTRAL`

Editor assessment

Adding array support for VERSION_NEUTRAL states a concrete API extension: the version-neutral constant can now be used within arrays, which readers of the versioning code will recognize immediately. feat(core,common) names both affected packages in the comma-separated style the project uses, an accurate if broad scope. No body follows; the subject carries the what, though a line on the use case — matching several versions at once — would have helped outsiders. No footers appear. Hygiene is clean: imperative mood, no trailing period, no pasted content.