C#: Update Csv validation to allow sources and sink kinds to be prefixed with generated.

java/ql/lib/semmle/code/java/dataflow/ExternalFlow.qll

@@ -606,9 +606,10 @@ module CsvValidation {
       )
     )
     or
-    exists(string row, string kind | summaryModel(row) |
-      kind = row.splitAt(";", 8) and
-      not kind = ["taint", "value", "generated:taint", "generated:value"] and
+    exists(string row, string k, string kind | summaryModel(row) |
+      k = row.splitAt(";", 8) and
+      getKind(k, kind, _) and
+      not kind = ["taint", "value"] and
       msg = "Invalid kind \"" + kind + "\" in summary model."
     )
   }