First draft; will be revised.

This will be very useful for further integration w/ JVM tech.

It's a script that generates a Java/RDF4J file with constants
for the OWL ontology. This makes working with ULO convinient.

I also etst performance and it looks okay on my small laptop.

- This also works just as well as a REST endpoint.

- Most likely this is just a demo. But it works for that.

I'll only need it for a demo, probably. But it's nice to have.

Should be enough to (1) talk to the Java API and (2) provide
a JSON API for the world.

This is really just experimental. MMT should be integrated directly
w/o JSON if possible to avoid nonsensical serialization.

Honestly Play is way too much for what I need. I just need
a simple JSON endpoint.

- I'll need some REST endpoint for the data

- GrahDB uses RDF4J -> JVM language prefered

- Let's try out Play. It works w/ Scala and Java.

- It was the seperate Importer compontent written in Java.

- It is not necessary anymore as we do it directly from REST
  in luoweb.

- I might merge it all in Java if it proves to be too annoying
  to do the RPC

- Better put all Go code into one repo.

- I've now wasted an hour on stupid file shuffling.

- It's the command line tool that will use the ulocollect lib.

- It's a Git submodule.

- code goes into /src

- prose in /doc

- /experimental is a playground

- Name interfaces in the canonical Golang way.

- Skip the complicated logging madness for now. I do want
  dedicated logging for each job, but not right now...

- This now works just fine.

- Next up is (1) refactoring, (2) cleanup of the received ULO/RDF
  files and (3) better state information (for the web interface)