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/context_helpers.py

@@ -0,0 +1,40 @@
+from coord.models import Bus, BusStop, TravellerRoute
+
+
+def bus_roll_context(queryset=None):
+    bus_routes = []
+    if queryset is None:
+        buses = Bus.objects.all()
+    else:
+        buses = queryset
+
+    for bus in buses:
+        bus_route = []
+
+        for bus_stop in BusStop.objects.filter(bus=bus):
+            traveller_list = []
+            for trav_route in TravellerRoute.objects.filter(busStop=bus_stop):
+                traveller = trav_route.traveller
+                if not traveller.is_active():
+                    continue
+                is_fared = "---"
+                if traveller.eligibility_status == "2":
+                    is_fared = "Y"
+                traveller_list.append({
+                    'display': f"{traveller} ({traveller.get_year_level_display()}, {traveller.school.shortName})",
+                    'isFared': is_fared
+                })
+            stop_result = {
+                'stop_num': bus_stop.get_stop_number(),
+                'name': bus_stop.address,
+                'am': bus_stop.am_time,
+                'pm': bus_stop.pm_time,
+                'travellers': traveller_list
+            }
+            # print(traveller_list)
+            bus_route.append(stop_result)
+
+        # Todo Add shuttles
+
+        bus_routes.append({'bus': bus, 'stops': bus_route})
+    return {'routes': bus_routes}