part mesh request from unity and 3d catalogue

[Philippe Hurbain]

if someone here has the right cache
theoretically every 2016 g2 sets could be built without any missing parts
and also almost every 2015 g2 sets (sans tahu master of fire and gali master of water) could be built with no missing parts

Indeed, it seems that the 3D catalog app appeared at the end of 2014... unfortunately I wasn't aware of its potential at the time! Moreover, I believe that old data were overwritten when a new catalog went out, so the hope to be able to find something that old is... low