ContextZerologAdapter returns a logging.Logger that implements logging.ContextLogger.

Default adds a context-aware zerolog logger (ContextZerologAdapter) as well as turn on client logging only if IsDebug is true.

IsDebug returns true when DEBUG environment variable is "1" or "true".

StaticZerologAdapter wraps a zerolog.Logger and returns a logging.Logger that does not implement logging.ContextLogger.