[BIS] Add previously merged BIS sites

These sites were previously merged into www.bis.gov.uk. They currently redirect
to www.bis.gov.uk/sub_org, appending whatever path was supplied. If bouncer
supported that behaviour, we'd set that up.

Timestamps were chosen as the last archive before they were redirected to a
path on www.bis.gov.uk. This may not be optimal...
Merge pull request #615 from alphagov/add_previously_merged_bis_sites

[BIS] Add previously merged BIS sites