iPHREEQC Integration

[oscarbranson]

• Generate PHREEQC inputs
• Load database and run PHREEQC
• Parse phreeqc output
  • Improve parsing to have friendlier column names.
• script to grab latest databases from web?
• should be aware of default .so paths on mac/win/linux and use the right one.
• Flexible parser for generating input strings from
  • dicts
  • rows of pandas DataFrames
• Function to auto-generate an output string containing all ions in database that are relevant to input elements.