Dsc 83

Hi Shaun,

I've created the initial implementation of creating collection of works from an EAD for dsc-83.  
Could you please review this change?

Thanks,

Shuang
This class would be simpler, easier to read and serve as a reference for making alternative configuration files if it were actually a JSON file bundled in the jar. (Added to the appropriate src directory and read with getClass().getResourceAsStream()).