[IDEA] Add a flag to pass names of bundles we want to download

[the-replicat]

The retrieving of bundles information can get quite long (a few minutes) on an account with a very big library (1500+ purchases). It would be nice to have a flag to pass one or more bundle names to fetch. The script could then check if you have these bundles / if the name you pass actually exists and by pass the retrival of the information of all you bundles/purchases.