re-add greek.pickle in ~/cltk_data
re-add greek.pickle in ~/cltk_data


Former-commit-id: e6a3c177091884b01b59fb27b1d024055fb13d41
LBenzahia/cltk,marpozzi/cltk,cltk/cltk,kylepjohnson/cltk,eamonnbell/cltk,coderbhupendra/cltk,TylerKirby/cltk,mbevila/cltk,D-K-E/cltk,LBenzahia/cltk,diyclassics/cltk,TylerKirby/cltk