Add detailed format to searchable
Add detailed format to searchable

In order to filter on this for Policies we need to send this to
ElasticSearch. This commit changes searchable to have this field.

ggoral/whitehall,askl56/whitehall,askl56/whitehall,alphagov/whitehall,ggoral/whitehall,hotvulcan/whitehall,hotvulcan/whitehall,askl56/whitehall,robinwhittleton/whitehall,robinwhittleton/whitehall,YOTOV-LIMITED/whitehall,hotvulcan/whitehall,robinwhittleton/whitehall,alphagov/whitehall,YOTOV-LIMITED/whitehall,askl56/whitehall,ggoral/whitehall,alphagov/whitehall,ggoral/whitehall,robinwhittleton/whitehall,hotvulcan/whitehall,YOTOV-LIMITED/whitehall,YOTOV-LIMITED/whitehall,alphagov/whitehall