Migrated to ITK main

As of 2026-04-27, the GenericLabelInterpolator module has been ingested into the main ITK source tree. The authoritative location is:

https://github.com/InsightSoftwareConsortium/ITK/tree/main/Modules/Filtering/GenericLabelInterpolator

See Modules/Filtering/GenericLabelInterpolator/README.rst (or any in-tree documentation under that path) for details on what moved and what remains in this archived repo.

This repository is retained read-only for historical reference (deep git history, paper material, example assets not migrated to ITK). It will be marked ARCHIVED after this PR merges.

Related:

• ITK ingest PR: InsightSoftwareConsortium/ITK#6135
• ITK ingest merge commit: InsightSoftwareConsortium/ITK@d1eab72aa6
• Consolidation issue: InsightSoftwareConsortium/ITK#6060