postman_paf 0.3.1

Unofficial gem to apply Royal Mail Rules & Exceptions to PAF (Postcode Address File) addresses when converting to a printable format. Based on the Royal Mail Programmers' Guide: https://www.poweredbypaf.com/wp-content/uploads/2017/07/Latest-Programmers_guide_Edition-7-Version-6.pdf,'Formatting a PAF address for printing' (page 27). Addresses conversions aim to resemble addresses returned by Royal Mail Find a PostCode as accurately as possible: https://www.royalmail.com/find-a-postcode.