Added a working version of an algorithm for finding all subgraph isomorphisms between a graph and a subgraph. This algorithm is not working 100% correctly yet, but is much closer to working than before. One problem is that it does not necessarily find all matches involving cycles.
Added a working version of an algorithm for finding all subgraph isomorphisms between a graph and a subgraph. This algorithm is not working 100% correctly yet, but is much closer to working than before. One problem is that it does not necessarily find all matches involving cycles.

git-svn-id: 38f1702c2d2bc28f7341d40983eddaad0d99b903@27 37378900-1858-4726-a06b-e54562fdc990

pierrelb/RMG-Py,comocheng/RMG-Py,nyee/RMG-Py,chatelak/RMG-Py,chatelak/RMG-Py,comocheng/RMG-Py,nyee/RMG-Py,enochd/RMG-Py,KEHANG/RMG-Py,nickvandewiele/RMG-Py,KEHANG/RMG-Py,faribas/RMG-Py,enochd/RMG-Py,faribas/RMG-Py,pierrelb/RMG-Py,nickvandewiele/RMG-Py