Add translator for Republik.ch (online newspaper)

[deragent]

Hi,

I wrote a basic translator for the Republik.ch online newspaper.

The main functions are:

• Extract title
• Extract author list from text
• Extract introduction paragraph as abstract
• Extract date from text
• Extract attachments, both screenshot of website and PDF generated by the website CMS

Most of this information is sadly not presented in structured HTML and therefore has to be matched and extracted from the article text flow.

For now I marked this translator as "Web" only and as "Gecko (Firefox)" only, as this is the only use cases which I could test so far. As this is my first translator, please advise on how to set these flags properly.

The translator also includes a (short) set of testcases.

[deragent]

Dear Abe, thanks for the review and all the inputs. I addressed most of them and commented on all the other ones. I will run the lint once we resolved all the open change requests.

[AbeJellinek]

Thanks! Sorry for the delay in reviewing your changes. I'm happy with this and think it's ready to merge. Before we do that, though, is it OK if we use the same AGPL license as in other translators?