Adds caching to project serializer (#2234)
Adds caching to project serializer (#2234)


srallen/Panoptes,zooniverse/Panoptes,zooniverse/Panoptes,camallen/Panoptes,zooniverse/Panoptes,camallen/Panoptes,camallen/Panoptes,srallen/Panoptes,srallen/Panoptes,zooniverse/Panoptes,camallen/Panoptes,srallen/Panoptes