Added annotations to kernel security classes.

Most of methods define @Nonnull inputs and outputs (the legacy behavior is mostly non-documented), but there're several exceptions

Signed-off-by: Oleg Nenashev <o.v.nenashev@gmail.com>
Merge pull request #1266 from synopsys-arc-oss/refactoring_security_classes

Added annotations to kernel security classes.
Integrating a new version that supports multiple issue trackers
Merge branch 'master' into reverse-proxy-JENKINS-23294