New Scraper Framework

[njall]

Recreate the Ruby scraper library in NodeJS.

The motivation is to broaden the ability of 3rd parties to contribute scrapers by using a more ubiquitous language.

To recreate the scraper framework you'll need to make a new API client that interfaces with the write API. The Ruby version is kept as a separate library here: https://github.com/ElixirTeSS/TeSS_api_client

Then you'll have to produce a common utility library (see Scraper modules in https://github.com/ElixirTeSS/TeSS_scrapers/blob/master/lib/tess/scrapers/scraper.rb). In Ruby, the scrapers inherit from this module which interfaces with the TeSS API and collects statistics about success rates.