Datacage: Add dc:all-state-successors() to enable predicates like dc:contains(dc:all-state-successors($artifact-name, $current-state-id), 'state.winfo.calculation_mode') which recursively collects all successor state ids an check for containment.

<?xml version="1.0" encoding="UTF-8" ?>
<datacage>
    <user>SA</user>
    <password/>
    <driver>org.h2.Driver</driver>
    <url>jdbc:h2:${artifacts.config.dir}/../datacagedb/datacage</url>
</datacage>