SA - Rent residential property

New SA: Landlord Immigration Checker.

- Built using the new Smartdown sintax
- Uses the GOV.UK's version of MapIt for validating postcodes

https://www.agileplannerapp.com/boards/105200/cards/5222


@dsingleton I have seen "EU, EEA or Switzerland" in other SAs. 
I assume that this format allows to understand quicker what to answer if someone is European. "EEA or Switzerland" is less clear if someone doesn't know what countries are included part of the EEA.