Mutlimer: Cation-Anion Pairs

[Awallace3]

I was making edits to enhance the API of CLE and noticed that charge is never handled in the code. For single monomers, this makes sense that it must be neutral; however, what if your CIF file has a cation-anion pair making the unit cell neutral but handling each molecule charged? This question arises from handling whether or not to pass chgmult for fragments.