Add French labels for the MeSH concepts to the ISSA KG

[AnnaBobasheva]

MeSH concept graph is manually downloaded from NLM site https://nlmpubs.nlm.nih.gov/projects/mesh/rdf/2022/mesh2022.nt.gz and contains only English concept labels and imported into the ISSA KG as http://id.nlm.nih.gov/mesh/graph .

To be able to annotate French text with MeSH Named Entities using pyclinrec tool we translated the MeSH labels from English to French by running a translate_MeSH_into_French.py script. The script creates mesh_fr.tsv that is used to initialize the pyclinrec annotator. However, the French labels are not loaded into the ISSA's http://id.nlm.nih.gov/mesh/graph in the HAL graph.

It would be nice and relatively easy to update the translate_MeSH_into_French.py with a function that creates a Turtle file with the French labels. And then load this Turtle file into the graph by updating import-mesh.isql.