added GetPublishers for use in book.html to make a publisher drop-down

publisher.py

@@ -38,6 +38,11 @@ def publishers():
     publishers = Publisher.query.all()
     return render_template("show_id_name.html", objects=publishers, page_title='Show All Publishers', url_base='publisher')
 
+def GetPublishers():
+    publishers = Publisher.query.order_by('name').all()
+    return publishers
+    
+
 ################################################################################
 # /publisher/<id> -> GET/POST(save or delete) -> shows/edits/delets a single publisher
 ################################################################################