Migrate legacy accounts away from wiki

[chrispinkney]

With the users microservice nearing completion we need a tool to download, parse, and send feed info from the wiki planet feed list to the users microservice via post requests.

The users microservice will store this data in firebase (or the emulator depending on the environment).

[chrispinkney]

Some updates to this issue after a brief meeting a few of us (@manekenpix @humphd @Metropass @birtony) had today:

• The old accounts in the planet feed list will NOT be migrated to the users microservice, as 99% of the accounts will likely not ever be used again. The blog feed URLs are the important pieces of data anyway, not the user accounts.
  • Instead we're simply going to update the tool to instead output a JSON file for use in the parsing microservice, and not worry about creating accounts for these "legacy" users.