Added french translation files for backend and frontend.

backend/fr/provenance.json

@@ -0,0 +1,15 @@
+{
+    "tlProvenance": {
+        "intro": "Researching the history of an objects means to validate and check different aspects. You first have to define the kind of check, whose reports you want to record here.",
+        "add_report": "Add a report",
+        "report": "Report",
+        "content": "Content",
+        "status": "Status",
+        "planned": "Scheduled",
+        "in_progress": "In progress",
+        "final": "Finished",
+        "creator": "Creator",
+        "date": "Date",
+        "upload_document": "Upload a document"
+    }
+}