Introduce docc documentation and "supported features" #755

Job	Run time
Documentation check (6.1.2, jammy, corretto)	2m 6s
Benchmark (JMH) (jammy swift:6.1.2 jdk:corretto)	7m 22s
Test (Swift) (jammy swift:6.1.2 jdk:corretto)	5m 49s
Test (Java) (macos swift:6.1.2 jdk:corretto)	3m 26s
Test (Swift) (macos swift:6.1.2 jdk:corretto)	4m 25s
Test (Java) (jammy swift:6.1.2 jdk:corretto)	2m 50s
Sample JavaKitSampleApp (jammy swift:6.1.2 jdk:corretto)	4m 52s
Sample JavaSieve (jammy swift:6.1.2 jdk:corretto)	2m 4s
Sample JavaProbablyPrime (jammy swift:6.1.2 jdk:corretto)	4m 40s
Sample JavaDependencySampleApp (jammy swift:6.1.2 jdk:corretto)	6m 38s
Sample JavaProbablyPrime (macos swift:6.1.2 jdk:corretto)	30s
Sample JavaDependencySampleApp (macos swift:6.1.2 jdk:corretto)	5m 35s
Sample SwiftAndJavaJarSampleLib (jammy swift:6.1.2 jdk:corretto)	4m 36s
Sample SwiftAndJavaJarSampleLib (macos swift:6.1.2 jdk:corretto)	1s
Sample JExtractJNISampleApp (jammy swift:6.1.2 jdk:corretto)	5m 31s
Sample JExtractJNISampleApp (macos swift:6.1.2 jdk:corretto)	11m 31s
Sample SwiftKitSampleApp (macos swift:6.1.2 jdk:corretto)	1s
Sample JavaSieve (macos swift:6.1.2 jdk:corretto)	27s
Sample SwiftKitSampleApp (jammy swift:6.1.2 jdk:corretto)	5m 40s
Sample JavaKitSampleApp (macos swift:6.1.2 jdk:corretto)	5m 58s
soundness / License headers check	8s
soundness / Broken symlinks check	3s
soundness / Unacceptable language check	6s
soundness / Shell check	33s
soundness / Python lint check	5s
soundness / YAML lint check	5s
soundness / Format check	-1s
soundness / Documentation check	-1s
soundness / API breakage check	-1s
	1h 24m 59s

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