Added a parser for PDBeChem XML file. This returns the name/chemical makeup of ligands identified by the PDB 3-letter code used by the wwPDB ligand dictionary.
Added a parser for PDBeChem XML file. This returns the name/chemical makeup of ligands identified by the PDB 3-letter code used by the wwPDB ligand dictionary.

Kortemme-Lab/klab,Kortemme-Lab/klab,Kortemme-Lab/klab,Kortemme-Lab/klab