INSPIRE harvester: implement transformer rules

* closes CERNDocumentServer#325

Author: anikachurilova

invenio.cfg

@@ -366,6 +366,7 @@ RDM_FILES_DEFAULT_MAX_FILE_SIZE = 50 * 10 ** 9  # 50GB
 
 JOBS_ADMINISTRATION_ENABLED = True
 
+IDENTIFIERS_SCHEMES_TO_DROP = ["SPIRES", "HAL", "OSTI", "SLAC", "PROQUEST"]
 RDM_RECORDS_IDENTIFIERS_SCHEMES = {**RDM_RECORDS_IDENTIFIERS_SCHEMES,
                                    **{"cds_ref": {"label": _("CDS Reference"),
                                                   "validator": always_valid,