Adds Liberation Sans (OFL), UniRx, KDTree, webgl-noise simplex noise and ambientCG to the list. CreditsTests now
matches LICEN[CS]E, COPYING, NOTICE, README, SOURCES, OFL files under Assets and requires each to be credited or
listed as reviewed-not-credited with a reason; credit notices are checked against what their files state. The
attribution heading is checked rather than skipped, the test states independent expectations, and the split Hurricane
line is joined.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
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