Adding option to disable default Logging

src/index.ts

@@ -283,7 +283,11 @@ export class LoggingBase {
       return { size: 0, stream: undefined };
    }
 }
-export const Logging = new LoggingBase();
+
+export let Logging = undefined;
+if (process.env.LOGGING_NO_DEFAULT !== "true") {
+   Logging = new LoggingBase();
+}
 export default Logging;
 
 function fsUnlink(path) {