feat: logger interface (#14829)

core/log/logger.go

@@ -0,0 +1,10 @@
+package log
+
+// Service is the interface that wraps the basic logging methods.
+type Service interface {
+	Debug(msg string, keyvals ...interface{})
+	Info(msg string, keyvals ...interface{})
+	Error(msg string, keyvals ...interface{})
+
+	With(keyvals ...interface{}) Service
+}