updated PID list

According to W. Al-Herz et al., Primary immunodeficiency diseases: an
update on the classification from the International Union of
Immunological Societies Expert Committee for Primary Immunodeficiency,
Front. Immunol. 5 (2014) 162. doi:10.3389/fimmu.2014.00162.
+ private notes from ESID conference
Merge pull request #3 from Bianca-T/updated-PID-list

updated PID list