Add getAromaticResonanceIsomers() function to add the aromatic form to a molecule's resonance forms.
Make aromatic tests not work in progress by testing the resonance isomers.
Revert calculateCyclicSymmetryNumber() function now that aromatic form is a resonance isomer.

Also the algorithm in this function was only working for benzene but not others.
Create getSymmetryNumber() function for species object.

Returns the largest symmetry number amongst all resonance isomers.  This will return
the aromatic species' symmetry number if that is the largest one.
Change some symmetry tests to Total symmetry tests.
Add toOldAdjacencyList() function for converting to Java style adjlists.

Currently lacking in group functionality.