Adding available_in_search field to output

See merge request !188

Change popoulate_fixtures to a management command

See merge request !186

Make the login-page look like the sketch.

See merge request !184

Move add role button

See merge request !182

- Create a new loginbox component. To be used as invitation login
  latter.
- Add a util function that creates the correct stylized institution abbrevation

Fix various WCAG things in frontend

See merge request !178

Bugfix/reload guests on verify

See merge request !180

Add emails to guest fixtures

See merge request !179

Consents

See merge request !173

Aria did not match label when changing langauge, and an id was
duplicated

All A and AA problems have been fixed except a missing label on an input
field.

Greg 101 verify identity

See merge request !170

Instead of forcing a reload of the page, we trigger a new api call in
the background, meaning we don't get a flash when verifying an identity.

Serialization has been moved to serializer classes, sharing them when
sensible and Views have been converted to ViewSets to simplify code.

Separates the queryset and the serialization from each other.

The OU view deserves its own file, and the guest info is actually a
person view and should live with  the other person views.