Making filename output optional

src/test.ts

@@ -83,3 +83,9 @@ Logging.log("MSG from root");
 
 const timer = Logging.time("timer1", "Test Timer");
 setTimeout(() => timer.end(), 1000);
+
+const withoutFile = new LoggingBase({
+   resolve_filename: false,
+});
+
+withoutFile.log("This should not have a file attached");