there isn't a software like that available (at least I haven't heard of one). Reason is there's very many game companies that make games, and different companies use different folders to save their games.
So the best way to do save backups is to do them yourself and make little notes in txt files so you don't forget where the files have to go back into in case you wish to restore those save files.
If you find any program that does what you want to do, let me know, I'd be interested to try it.
I read about one in Maximum PC I believe, maybe PC World magazine. Cannot seem to remember!