All results using curated data have been replicated with ENDF files. This also helps with data providence, see #11 and #13.
This change will make it much simpler to add new materials to NeSST - the interface for this could be tidied up but would be too much for this already large PR.
Fairly large change to migrate from curated data files to ENDF data files. This makes use of the python endf package (https://github.com/paulromano/endf-python).
All results using curated data have been replicated with ENDF files. This also helps with data providence, see #11 and #13.
This change will make it much simpler to add new materials to NeSST - the interface for this could be tidied up but would be too much for this already large PR.