update-stats: add generation of size graphs
update-stats: add generation of size graphs

vivekanand1101/debsources,oorestisime/debsources,matthieucan/debsources,clemux/debsources,zacchiro/debsources,sophiejjj/debsources,clemux/debsources,oorestisime/debsources,nonas/debian-qa,nonas/debian-qa,devoxel/debsources,sophiejjj/debsources,nonas/debian-qa,matthieucan/debsources,vivekanand1101/debsources,Debian/debsources,devoxel/debsources,clemux/debsources,Debian/debsources,zacchiro/debsources,vivekanand1101/debsources,clemux/debsources,zacchiro/debsources,zacchiro/debsources,oorestisime/debsources,Debian/debsources,devoxel/debsources,Debian/debsources,Debian/debsources,nonas/debian-qa,devoxel/debsources,sophiejjj/debsources,devoxel/debsources,sophiejjj/debsources,oorestisime/debsources,matthieucan/debsources,vivekanand1101/debsources,zacchiro/debsources,oorestisime/debsources,vivekanand1101/debsources,matthieucan/debsources,matthieucan/debsources,clemux/debsources,sophiejjj/debsources