Add metadata to assembled file; Jose says FF1 deriv needs c0
Refs #16 workflow changed to submit derivative simulations
Refs #16 namd batch uses 1/3 of Chadwick
Refs #16 assemblemodel and convolve changed for derivatives
Refs #16 ff_update creates force fields for derivatives
Refs #16 Default LiCl has 3 Qs; LiCl_290K_4Qs.nxs added
Refs #16 remove e0.3 and e1 for model