Update materials.csv based on rochester data

Author: lpcoladangelo

terms/reconciled/materials.csv

@@ -509,6 +509,7 @@ parchment :,parchment,http://vocab.getty.edu/aat/300011851,Q33
 parchment.,parchment,http://vocab.getty.edu/aat/300011851,Q33
 parchment (9 paper),parchment;paper,http://vocab.getty.edu/aat/300011851;http://vocab.getty.edu/aat/300014109,Q33;Q31
 parchment (goat),parchment,http://vocab.getty.edu/aat/300011851,Q33
+parchment (vellum),parchment,http://vocab.getty.edu/aat/300011851,Q33
 parchment & paper,parchment;paper,http://vocab.getty.edu/aat/300011851;http://vocab.getty.edu/aat/300014109,Q33;Q31
 "parchment & paper, col. ill., coats of arms, genealogical tables, illuminations",parchment;paper,http://vocab.getty.edu/aat/300011851;http://vocab.getty.edu/aat/300014109,Q33;Q31
 parchment|paper,parchment;paper,http://vocab.getty.edu/aat/300011851;http://vocab.getty.edu/aat/300014109,Q33;Q31