logger: add wrapper support

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

logger/options.go

@@ -23,6 +23,8 @@ type Options struct {
 	CallerSkipCount int
 	// The logging level the logger should log
 	Level Level
+	// Wrappers logger wrapper that called before actual Log/Logf function
+	Wrappers []Wrapper
 }
 
 // NewOptions creates new options struct
@@ -81,3 +83,10 @@ func WithName(n string) Option {
 		o.Name = n
 	}
 }
+
+// WrapLogger adds a logger Wrapper to a list of options passed into the logger
+func WrapLogger(w Wrapper) Option {
+	return func(o *Options) {
+		o.Wrappers = append(o.Wrappers, w)
+	}
+}