Added openaire scraper and tests. Not functional at this point, further testing required.
OpenAIRE scraper functioning and part tested.

Need to add final tests to ensure we actually get the right answer and then would probably be a good idea to re-factor the test cases for a cleaner approach and more readable code.
OpenAIRE scraper now fully tested.

Could still do with cleaning up the test cases and iterating over them in a cleaner fashion but this works and is giving the right answers.