Class MultiFileReader

Reads structures from multiple files.
Uses StructureReader

Options:
  files - list of files to read
 
  ignore_errors -   Whether to skip bad SD structures 
                    (default False)
  
  skip_receptors -  Whether to skip the first structures of PV files
                    (default False)

  allow_smiles -    Whether to allow input SMILES files. Iiterators will
                    return SmilesStructure objects for SMILES files.
                    (default False)


Usage:
  reader = MultiFileReader(input_files)
  for st in reader:
      <process the structure>


Prints warnings if any structure from SD file was skipped.

Raises Exception if structure from other formatted file count not be read.