Add the MastercatCSS, MastercatSSS, MastercatMLS catalogues

[thespacedoctor]

http://nesssi.cacr.caltech.edu/DataRelease/schema.html#Masterc

[thespacedoctor]

This data release encompasses the photometry for 500 million objects (~40 billion measurements) with V magnitudes between 11.5 and 21.5 from an area of 33,000 square degrees. Catalina photometry covers objects in the range -75° < Dec < 70°