Add Stagecraft stubs for 5x FCO dashboards

Copied from Limelight.

Include page per thing stubs
FCO dashboard typo: uk -> UK
Add JSON stub for Housing policy [#61021796]

- No tagline yet that I can see anywhere
- URL defined in Pivotal
Merge pull request #46 from alphagov/fco-and-housing-json

JSON stubs for other FCO dashboards and housing policy