Export GOOD items in scan order, not arbitrary order

[escalonn]

For debugging or other manual handling of the output GOOD data, it's frequently a problem that the artifacts are not enumerated in the order they were scanned in, making it hard to correlate artifacts in the game or in the scanner logs with artifacts in the output.

This would be fixed by exporting the items in the order they were scanned. I don't know if a similar issue applies to weapons.