Explode Discogs XML files into per-record files.

[josiah-wolf-oberholtzer]

Name the files by their intended class and Discogs ID.

The incredibly massive files provided are cumbersome. If any part of an import fails, the file must be scanned up to that point. This process can takes hours and hours. By providing individual files per record, it should be easier to simply sort and search the file system, compare against the current contents of the database, and continue from there.

[josiah-wolf-oberholtzer]

It's not clear whether or not this will help. An overriding concern is that separating out individual XML files does generally cause us to run out of disk space on the current dev machine.

[josiah-wolf-oberholtzer]

Not necessary.