add audio and video property to Field shape

Author: sanuann

reproschema/tests/reproschema-shacl.ttl

@@ -96,6 +96,14 @@ reproschema:FieldShape a sh:NodeShape ;
             sh:maxCount 1 ;
             sh:path schema:image ],
 
+        [ sh:nodeKind sh:IRI ;
+            sh:maxCount 1 ;
+            sh:path schema:audio ],
+
+        [ sh:nodeKind sh:IRI ;
+            sh:maxCount 1 ;
+            sh:path schema:video ],
+
         [ sh:datatype rdf:langString ;
             sh:path reproschema:preamble ],