Add scaffolded directories for data files
[scanner] Introduce "scanner:scanFinished" event that gets called once all fields have been scanned. The gathered event/portal data gets passed as argument to the callback function.
[debug] When in debug mode, a listener for "scanner:scanFinished" is attached and everytime it is called, it simply writes the unprocessed event data to a file. Output files are placed into the `data/scans` folder and named with a timestamp.
Update README.md