Make classes and properties of the ontology dereferencable

[ingoboerner]

The ontology things are still work in progress (read: are somewhat a mess) but just for reference here:

Currently it is possible to download the v0 of the DraCor ontology at https://dracor.org/ontology. To make this system more useful and adhere to LOD principles, there should be a way to have URIs for classes and properties that are dereferencable.
There are probably two options:

• easier, but uglier: use Hash-URIs for concepts, e.g. https://dracor.org/ontology.rdf#play_name then a HTTP request (not requesting RDF maybe) should display the ontology (as RDF)? A browser might point a user to the right place in the RDF file, maybe.
• better integrated option: Use RestXQ and have a resolver at .../ontology/ and evaluate an URL parameter .../ontology/{local-id}, e.g. https://dracor.org/ontology/play_name. This would allow to do proper content negotiation, i.e. return RDF in different serializations (optional); provide a human readable view of a class or a property. This is more work but could maybe lead to better results.