Convention for linking to raw data that isn't from an official state elections website

[ghing]

We should decide on a convention for linking to raw data that isn't from an official state elections website. This is needed when we received data on DVD or via email. In many cases, such data is stored in the openelections-data-{abbrev} repos, but not in a particularly standardized way.

The implementation point for this should probably be the Datasource.

This came up when deciding on the best implementation for linking to source data on the front end (see openelections/openelections.github.io#27).

[dwillis]

I think it depends on the size of the files, but I'd recommend that if we're dealing with individual files (spreadsheets or text files), they be placed in a raw folder in the openelections-data-{abbrev} repo to distinguish them from any necessary pre_processed files (WY is an example of this).

If the file(s) represent all results in a single election (like PA), I think splitting them into office-specific files using our naming convention makes sense. But open to better suggestions.