Add seed for HRMC organisation
Add seed for HRMC organisation

As part of the E2E testing we have found that the contacts admin is
specifically geared towards HMRC contacts and publishes a specific
finder that is useful in testing. As part of this we require a HMRC
organisation to exist to leverage the finder properly.

https://github.com/alphagov/contacts-admin/blob/3f421eaf16693ef616d15df3a7b83c9cc625d093/app/services/publish_finders.rb#L24

alphagov/whitehall,alphagov/whitehall,alphagov/whitehall,alphagov/whitehall