gov.uk
nhs.uk
nhs.net
nhs.scot
police.uk
cjsm.net
ac.uk
sch.uk
onevoicewales.wales
suttonmail.org

gov.uk
nhs.uk
nhs.net
nhs.scot
police.uk
cjsm.net
ac.uk
sch.uk
onevoicewales.wales
suttonmail.org
hscni.net

Add hscni.net to list of allowed domains
Add hscni.net to list of allowed domains

We can't assign `hscni.net` to an organisation because it is used
by GP surgeries, so we don't always know which org it should be
associated with. This change allows people with the an `hscni.net`
email address to sign up and create a service.
