Map OMERO instance

[CFGrote]

Add template triples that instantiate the configured omero instance as an object. the objects IRI should
be the URL configured at deployment time. omero projects should then be related to the instance via dcterms:hasPart. This
will facilitate integration of omero KGs in broader KGs e.g. in the NFDI4BIOIMAGE KG (https://github.com/nfdi4bioimage/nfdi4bi-kg), which contain
the omero server URL as a node.

<ome.example.org> a :OMEROServer;
                  dcterms:hasPart <ome.example.org/Project/1 .