This is the addition part of
- https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/issues/3526

The feature is copied into this repository from
https://github.com/eclipse-platform/eclipse.platform.releng.aggregator/tree/dc928ef206f23fc909c4a8839ed995f3848571f0/eclipse.platform.releng/features/org.eclipse.help-feature