Changed bus roll to be a pdf view. Small changes needed to be able to email to companies.

Dropdown selection in admin > buses > Email Bus Roll To Company
Will email bus roll only to the company the route is a member of. Will show all to the admin in a pdf file.

Recipients are currently hardcoded for testing purposes.

busManager/coord/urls.py

@@ -6,5 +6,6 @@ urlpatterns = [
     path("roll", views.bus_roll, name="Student Roll"),
     path("contacts", views.emergency_contacts, name="Emergency Contacts"),
     path("stops", views.bus_summary, name="Stop Summary"),
-    path("summary", views.bus_numbers, name="Bus Summary")
+    path("summary", views.bus_numbers, name="Bus Summary"),
+    path("testemail", views.TestEmail, name="Test Email")
 ]