runc features
Follow-up to PR 3296 Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>
Fix issue 3274 See `types/features/features.go`. Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>