CMFGENReader incapable of accessing majority of CMFGEN Photoionization cross sections

[Rodot-]

Describe the bug

Currently the CMFGENReader can only access data inside of the current config, but this only accounts for a small subsample of the total species available. When adding new directories to the config, various errors occur due to issues with inconsistent parsing.

To Reproduce
Example: Use the CMFGENReader to access photoionization data for Ca I (Ca 0)

System

• OS:
  • GNU/Linux
  • macOS

The file parsers should probably be looked over and written more explicitly. I know this is a pain because of the inconsistent file types. If anyone ever gets around to working on this hit me up and I'll help out.

[andrewfullard]

I can reproduce this straightforwardly.