Atomic data for SIKE

This is a repository of atomic data (levels, transitions, cross-sections, etc) for use with the atomic kinetic solver SIKE (https://github.com/plasdom/SIKE). This is used for calculating equilibrium atomic state distributions in magnetic fusion plasmas with impurities. It has been assembled from a number of sources:- FAC (Gu, M. Canadian Journal of Physics (2004))- NIST (Kramida, A. et al. NIST Standard Reference Simulation Website)- FLYCHK (Chung, H. et al. High Energy Density Physics (2005))