Add FeatureKey #385

Job	Run time
Submit Dependencies	0s
Generate Site (ubuntu-22.04, temurin@11)	1m 9s
Test (ubuntu-22.04, 2.13, temurin@8, rootJVM)	1m 23s
Test (ubuntu-22.04, 3, temurin@8, rootJVM)	1m 16s
Publish Artifacts	0s
	3m 48s

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