Bibformat: Improvements and fixes of authorities

* Improved and fixed layouts and styles of the authorities' record and search results pages
* Changed the title of records in the search results page to link to the actual records they refer to
* Added more useful information to authors' record pages such as links to their publications hosted locally, a better search query to their whole publication list and their publicly available resources on sites like wikipedia, viaf and library of congress.
* Created functions to connect to the viaf api and retrieve the link to the wikipedia page of authors using their viaf id.
* Created a bibcheck task (Using the viaf function) to update all records of authors that contain a viaf id, with their wikipedia link.