add support to AuditTo.Logger

Author: Donn Relacion

src/Serilog.Settings.Configuration/Settings/Configuration/SurrogateConfigurationMethods.cs

@@ -67,6 +67,13 @@ static LoggerConfiguration Sink(
             LoggingLevelSwitch levelSwitch = null)
             => auditSinkConfiguration.Sink(sink, restrictedToMinimumLevel, levelSwitch);
 
+        static LoggerConfiguration Logger(
+            LoggerAuditSinkConfiguration auditSinkConfiguration,
+            Action<LoggerConfiguration> configureLogger,
+            LogEventLevel restrictedToMinimumLevel = LevelAlias.Minimum,
+            LoggingLevelSwitch levelSwitch = null)
+            => auditSinkConfiguration.Logger(configureLogger, restrictedToMinimumLevel, levelSwitch);
+
         // .Filter...
         // =======
         // TODO: add overload for array argument (ILogEventEnricher[])