Created by: walshjon
This PR constitutes the illegitimate lovechild of my URR package, purxs, and openmc. Please be kind to her --- she's a little slow.
purxs is configured as a submodule of openmc. In the repo, currently inaccessible to most, I provide: -- necessary data (evaluations for a few isotopes, average xs computed with purxs) -- doxygen documentation (run doxygen in /purxs/docs/man to build) -- example inputs for key functionality -- python module for building urr.xml inputs -- scripts that used the python to build inputs (self-explanatory to use) -- src -- a simple testing framework (out-of-date)