when processing data from the inventory_provider poller/interfaces endpoint BDM now uses dashboards_info rather than dashboard_info
dashboards_info contains a list of objects rather than dashboard_info which contains a single object

potentially other fields too, although it's not immediately clear if this would be useful

responses lib module doesn't work with ProcessPoolExecutor

also added a few functional methods

Dashboard generation now depends on dashboards obtained from Inventory Provider.

Required in the event of stale NREN dashboards