with price, shipping, purchase date, seller, and additional notes
working for read and write. test included for exporting to/importing
from string form pushed to discogs, which is validated before changes
are made. worked on whole library.
template CSV to fill in can be created with `./main -template test.csv`,
additional args `-print` and `-reload` print and reload the collection
cache respectively. proof of concept for modifying notes available but
not used yet. go-discogs library was originally a submodule, however is
now a fork at github.com/hrfee/go-discogs.
