Fix typo 
Fix typo 

UNSTRUCTURESCONSONANTS -> UNSTRUCTURED_CONSONANTS
followed the usual convention of CLTK to separate with an _ ( underscore)
kylepjohnson/cltk,cltk/cltk,D-K-E/cltk,TylerKirby/cltk,diyclassics/cltk,TylerKirby/cltk,LBenzahia/cltk,LBenzahia/cltk