Automatically Delete Backup If Matching Previous

[DustinVG]

Basically, if the checksums of the two backups (sans configuration file) match, delete the new backup in order to save a bit of space and keep things more organized, since it's not actually needed.

Not sure how doable this is (it would require a check before whenever GBM inserts said config file and a cache of the previous checksum for each game) and it might not even be worth it, but it's a thought I had.

[MikeMaximus]

Thanks for the suggestion. I'm not sure if it's feasible to implement but I'll ponder it.