Imports of slog2k8s command

PathSynopsis
contextPackage context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes.
k8s.io/klog/v2Package klog contains the following functionality:
log/slogPackage slog provides structured logging, in which log records include a message, a severity level, and various other attributes expressed as key-value pairs.
osPackage os provides a platform-independent interface to operating system functionality.