gnu: Add java-eclipse-rdf4j-queryparser-api.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-queryparser-api): New variable.

gnu: Add java-eclipse-rdf4j-sail-api.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-sail-api): New variable.

gnu: Add java-eclipse-rdf4j-repository-api.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-repository-api): New variable.

gnu: Add java-eclipse-rdf4j-queryalgebra-model.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-queryalgebra-model): New variable.

gnu: Add java-eclipse-rdf4j-query.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-query): New variable.

gnu: Add java-eclipse-rdf4j-rio-trig.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-trig): New variable.

gnu: Add java-eclipse-rdf4j-rio-rdfxml.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-rdfxml): New variable.

gnu: Add java-eclipse-rdf4j-rio-jsonld.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-jsonld): New variable.

gnu: Add java-eclipse-rdf4j-rio-nquads.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-nquads): New variable.

gnu: Add java-eclipse-rdf4j-rio-ntriples.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-ntriples): New variable.

gnu: Add java-eclipse-rdf4j-rio-turtle.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-turtle): New variable.

gnu: Add java-eclipse-rdf4j-rio-languages.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-languages): New variable.

gnu: Add java-eclipse-rdf4j-rio-datatypes.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-datatypes): New variable.

gnu: Add java-eclipse-rdf4j-rio-api.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-rio-api): New variable.

gnu: Add java-jsonld-java.

* gnu/packages/java-rdf.scm (java-jsonld-java): New variable.

gnu: Add java-eclipse-rdf4j-model.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-model): New variable.

gnu: Add java-eclipse-rdf4j-util.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-util): New variable.

gnu: Add java-eclipse-rdf4j-model-vocabulary.

* gnu/packages/java-rdf.scm (java-eclipse-rdf4j-model-vocabulary): New variable.

gnu: Add java-eclipse-rdf4j-model-api.

Since RDF4J is a large framework with many parts, this patch also prepares
some boilerplate code for the other packages.

* gnu/packages/java-rdf.scm (%rdf4j-version, %rdf4j-sha256, %rdf4j-source)
(rdf4j-common-arguments): New variables.
(java-eclipse-rdf4j-model-api): New variable.

gnu: Add java-commons-rdf-simple.

* gnu/packages/java-rdf.scm (java-commons-rdf-simple): New variable.