Merge pull request #872 from rjc123/newsites

Archive timestamp change for landregistry
Add an alias for site.landregistry.gov.uk
Merge pull request #873 from alphagov/landregistry_site_alias

Add an alias for site.landregistry.gov.uk
Move each of the sites in the directgov_legacy block into its own file

- I think this is all of them - one was a www. alias of another, so
  added to the same file, if the counts between these files and
  https://github.com/alphagov/redirector/blob/master/data/transition-sites/directgov_legacy.yml
  don't match up.
- Remove `directgov_legacy.yml`.
Change directgov_unimoney's timestamp to a working one

- Missed this in https://github.com/alphagov/redirector/pull/871 -
  sorry.
Merge pull request #875 from alphagov/change_directgov_unimoney_timestamp

Change directgov_unimoney's timestamp to a working one
Merge pull request #874 from alphagov/directgov_legacy_split

Move each of the sites in the directgov_legacy block into its own file
Add an alias for site.cofrestrfatir.gov.uk, the Welsh Land Registry
Merge pull request #876 from alphagov/add_site_alias_to_welsh_lr

Add an alias for site.cofrestrfatir.gov.uk, the Welsh Land Registry
Merge pull request #877 from rjc123/newsites

Config Civil Service Fast Stream programme on transition
Configure cmu.dh.gov.uk on transition tool