Hi, zap maintainers!

Is your feature request related to a problem? Please describe.

The recently added WithLazy method is amazing (PR: #1319). This capability is not yet available for SugaredLogger

Describe the solution you'd like
The straightforward idea is to expose a similar signature from SugaredLogger using WithLazy method :

func (s *SugaredLogger) WithLazy(args ...interface{}) *SugaredLogger {
	return &SugaredLogger{base: s.base.WithLazy(s.sweetenFields(args)...)}
}

There is still overhead from the sweetenFields call, but it's nonetheless much less than using With().

Is this a breaking change?
Nope

If you approve, I'm ready to work on that because it's somewhat blocking us