Provide function to create markup syntax for a specific CMS to add resources.

[schloett]

For an overview, see #18.
The provided function should turn a resource retrieved via EEXCESS into markup code, which can be inserted into a particular CMS. At first, we need this functionality for Wikipedia (wikicode). Therefore, the different possibilities to add content (cite, add image, add link, ....) need to be evaluated and the ability to provide markup code should be implemented for the reasonable possibilities. Maybe the CitationBuilder of this repository already covers this task. @n-witt could you please tell us whether this is the case?

[kunzstef]

Markup functions provided by wikiCode:

• link

[http://www.example.org Linktext]

• reference

Example Paper <ref>[http://www.example.org Example Paper]</ref>

• image

[[Image:Wiki.png|50px|link=MediaWiki]] -> [[Image:Wiki.png|<width>|link=MediaWiki]]
https://en.wikipedia.org/upload/b/bc/Wiki.png -> link displayed to external image
[http://url.for/some/image.png] -> reference to external image

-> not possible to insert external images -> have to be uploaded on page or they can only be referenced by link if not allowed like described here: https://www.mediawiki.org/wiki/Manual:$wgAllowExternalImages#Why_disallow_external_images.3F

[schloett]

Is there a possibility to upload images programmatically?
For images on commons.wikimedia.org, the inclusion should be possible, right?
Maybe adding references might also be useful (I assume there exists dedicated markup?)