[BANES] Add BathNES map type & assets

BANES have some staff-only assets, so this adds a cobrand hook
to enable extra JS to be included on the page for staff users.

 - Add custom OpenLayers build with GeoJSON support
 - Add grit bins/street lights/LLPG asset layers
 - Displays non-BANES street light assets in grey
 - Add adopted highways to map
     This means USRNs will be set for reports made by members of the public.
     To keep the map simple, however, the highways layer is invisible to
     non-staff users.

1 files changed, 1 insertions, 1 deletions

diff --git a/templates/web/base/common_scripts.html b/templates/web/base/common_scripts.html
index cf9692128..3d923f33f 100644
--- a/templates/web/base/common_scripts.html
+++ b/templates/web/base/common_scripts.html
@@ -46,7 +46,7 @@ IF c.user_exists AND (c.user.from_body OR c.user.is_superuser);
 END;
 
 IF bodyclass.match('mappage');
-    FOR script IN map_js;
+    FOR script IN map_js.merge(c.cobrand.call_hook('map_js_extra', c));
         IF script.match('^/');
             scripts.push(version(script));
         ELSE;