GNFS implementation + GF2 gaussian elimination fix

src/Factorization.hs

@@ -1,5 +1,6 @@
-module Factorization ( fermatFactorization, pollardPminus1, dixon) where
+module Factorization ( fermatFactorization, pollardPminus1, dixon, gnfs, gnfsWith, GNFSParams(..), defaultParams) where
 
 import Factorization.FermatFactorization
 import Factorization.PollardPminus1
 import Factorization.Dixon
+import Factorization.GNFS