WIP: REST API for Article

                     
|Q            |A    |
|---          |---  |
|Bug Fix?     |n    |
|New Feature? |y    |
|BC Breaks?   |n    |
|Deprecations?|n    |
|Tests Pass?  |n    |
|Fixed Tickets|     |
|License      |GPL-3|
|Doc PR       |     |
                     

Introduces the ability to write an Article through the REST API

Todo:
- [x] POST */article for a new Article
- [x] PATCH */article/{number}/{language} for updating an existing Article
- [ ] Refactor ```Update the article author```