for each basic morphism enumeration
small addition to test
preliminary version of endomorphism save and load
finishing save load for endomorphisms
additional conjugation method
non trivial images num patch
in free reductino do not add id vertices
small refactoring, graphviz representations
graphviz format patch
graphviz print patch
graphviz patch
save/load, graphviz patch
rewrited graphviz representation so it looks better
small changes